diff --git a/src/main/java/xyz/alexcrea/cuanvil/gui/config/global/ItemConfigGui.java b/src/main/java/xyz/alexcrea/cuanvil/gui/config/global/ItemConfigGui.java
index e2144413..3bc19d5f 100644
--- a/src/main/java/xyz/alexcrea/cuanvil/gui/config/global/ItemConfigGui.java
+++ b/src/main/java/xyz/alexcrea/cuanvil/gui/config/global/ItemConfigGui.java
@@ -2,7 +2,6 @@ package xyz.alexcrea.cuanvil.gui.config.global;
 
 import com.github.stefvanschie.inventoryframework.gui.GuiItem;
 import com.github.stefvanschie.inventoryframework.gui.type.ChestGui;
-import com.github.stefvanschie.inventoryframework.gui.type.util.Gui;
 import com.github.stefvanschie.inventoryframework.pane.PatternPane;
 import com.github.stefvanschie.inventoryframework.pane.util.Pattern;
 import io.delilaheve.CustomAnvil;
@@ -119,4 +118,16 @@ public class ItemConfigGui extends ChestGui {
         return groupConfigGui;
     }
 
+    /*private UnitRepairConfigGui getUnitRepairConfigGui(NamespacedKey material) {
+        if (unitRepairConfigGui == null) {
+            unitRepairConfigGui = new UnitRepairConfigGui(this);
+            unitRepairConfigGui.setFilter(otherMat ->
+                    group.contain(material) //TODO check material & what inside
+            );
+            unitRepairConfigGui.init();
+        }
+
+        return unitRepairConfigGui;
+    }*/
+
 }
diff --git a/src/main/java/xyz/alexcrea/cuanvil/gui/config/global/UnitRepairConfigGui.java b/src/main/java/xyz/alexcrea/cuanvil/gui/config/global/UnitRepairConfigGui.java
index c3e8bcb0..cc4a981f 100644
--- a/src/main/java/xyz/alexcrea/cuanvil/gui/config/global/UnitRepairConfigGui.java
+++ b/src/main/java/xyz/alexcrea/cuanvil/gui/config/global/UnitRepairConfigGui.java
@@ -1,9 +1,10 @@
 package xyz.alexcrea.cuanvil.gui.config.global;
 
 import com.github.stefvanschie.inventoryframework.gui.GuiItem;
+import com.github.stefvanschie.inventoryframework.gui.type.util.Gui;
 import io.delilaheve.CustomAnvil;
 import org.bukkit.Material;
-import org.bukkit.configuration.ConfigurationSection;
+import org.bukkit.NamespacedKey;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
@@ -13,24 +14,25 @@ import xyz.alexcrea.cuanvil.gui.config.ask.SelectItemTypeGui;
 import xyz.alexcrea.cuanvil.gui.config.list.MappedGuiListConfigGui;
 import xyz.alexcrea.cuanvil.gui.config.list.UnitRepairElementListGui;
 import xyz.alexcrea.cuanvil.util.CasedStringUtil;
+import xyz.alexcrea.cuanvil.util.MaterialUtil;
 
-import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
+import java.util.HashSet;
 
 public class UnitRepairConfigGui extends
-        MappedGuiListConfigGui<Material, MappedGuiListConfigGui.LazyElement<UnitRepairElementListGui>> {
+        MappedGuiListConfigGui<NamespacedKey, MappedGuiListConfigGui.LazyElement<UnitRepairElementListGui>> {
 
     private static UnitRepairConfigGui INSTANCE;
 
     @Nullable
-    public static UnitRepairConfigGui getCurrentInstance(){
+    public static UnitRepairConfigGui getCurrentInstance() {
         return INSTANCE;
     }
 
     @NotNull
-    public static UnitRepairConfigGui getInstance(){
-        if(INSTANCE == null) INSTANCE = new UnitRepairConfigGui();
+    public static UnitRepairConfigGui getInstance() {
+        if (INSTANCE == null) INSTANCE = new UnitRepairConfigGui();
 
         return INSTANCE;
     }
@@ -41,8 +43,12 @@ public class UnitRepairConfigGui extends
         init();
     }
 
+    public UnitRepairConfigGui(Gui parent) {
+        super("Unit Repair Config", parent);
+    }
+
     @Override
-    protected LazyElement<UnitRepairElementListGui> newInstanceOfGui(Material material, GuiItem item) {
+    protected LazyElement<UnitRepairElementListGui> newInstanceOfGui(NamespacedKey material, GuiItem item) {
         return new LazyElement<>(item, () -> {
             UnitRepairElementListGui element = new UnitRepairElementListGui(material, this);
             element.init();
@@ -51,23 +57,34 @@ public class UnitRepairConfigGui extends
     }
 
     @Override
-    protected ItemStack createItemForGeneric(Material material) {
-        ConfigurationSection materialSection = ConfigHolder.UNIT_REPAIR_HOLDER.getConfig().getConfigurationSection(material.name().toLowerCase());
-        String materialName = CasedStringUtil.snakeToUpperSpacedCase(material.name().toLowerCase());
+    protected ItemStack createItemForGeneric(@NotNull NamespacedKey material) {
+        var unitConfig = ConfigHolder.UNIT_REPAIR_HOLDER.getConfig();
+        var section = unitConfig.getConfigurationSection(material.toString().toLowerCase());
+        var legacySection = unitConfig.getConfigurationSection(material.toString().toLowerCase());
 
-        if(material.isAir()){
-            material = Material.BARRIER;
+        String materialName = CasedStringUtil.snakeToUpperSpacedCase(material.getKey().toLowerCase());
+
+        var display = MaterialUtil.INSTANCE.getMatFromKey(material);
+
+        if (display == null || display.isAir()) {
+            display = Material.BARRIER;
         }
 
-        int reparableItemCount = materialSection == null ? 0 : materialSection.getKeys(false).size(); // Probably an expensive call but... why not
+        var reparable = new HashSet<String>();
+        if (section != null)
+            reparable.addAll(section.getKeys(false));
+        if (legacySection != null)
+            reparable.addAll(legacySection.getKeys(false));
 
-        ItemStack item = new ItemStack(material);
+        var reparableItemCount = reparable.size();
+
+        ItemStack item = new ItemStack(display);
         ItemMeta meta = item.getItemMeta();
         assert meta != null;
 
-        meta.setDisplayName("§eRepaired by " +materialName);
+        meta.setDisplayName("§eRepaired by " + materialName);
         meta.setLore(Arrays.asList(
-                "§7There is currently §e" +reparableItemCount+ " §7reparable item with "+materialName,
+                "§7There is currently §e" + reparableItemCount + " §7reparable item with " + materialName,
                 "§7Click here to open the menu to edit reparable item by " + materialName
         ));
 
@@ -77,13 +94,16 @@ public class UnitRepairConfigGui extends
     }
 
     @Override
-    protected Collection<Material> getEveryInstanceOfGeneric() {
-        ArrayList<Material> materials = new ArrayList<>();
+    protected Collection<NamespacedKey> getEveryInstanceOfGeneric() {
+        var materials = new HashSet<NamespacedKey>();
+        var config = ConfigHolder.UNIT_REPAIR_HOLDER.getConfig();
 
-        for (String matName : ConfigHolder.UNIT_REPAIR_HOLDER.getConfig().getKeys(false)) {
-            Material mat = Material.getMaterial(matName.toUpperCase());
-            if(mat != null){
-                materials.add(mat);
+        for (String matName : config.getKeys(false)) {
+            if(!config.isConfigurationSection(matName)) continue;
+
+            NamespacedKey material = NamespacedKey.fromString(matName.toLowerCase());
+            if (material != null) {
+                materials.add(material);
             }
         }
         return materials;
@@ -113,7 +133,7 @@ public class UnitRepairConfigGui extends
                             "§7You like to be an unit repair item",
                     this,
                     (itemStack, player) -> {
-                        Material type = itemStack.getType();
+                        NamespacedKey type = MaterialUtil.INSTANCE.getCustomType(itemStack);
                         // Add new material
                         updateValueForGeneric(type, true);
 
@@ -126,9 +146,9 @@ public class UnitRepairConfigGui extends
     }
 
     @NotNull
-    public LazyElement<UnitRepairElementListGui> getInstanceOrCreate(Material mat){
+    public LazyElement<UnitRepairElementListGui> getInstanceOrCreate(NamespacedKey mat) {
         LazyElement<UnitRepairElementListGui> element = this.elementGuiMap.get(mat);
-        if(element == null){
+        if (element == null) {
             updateValueForGeneric(mat, false);
 
             element = this.elementGuiMap.get(mat);
@@ -141,8 +161,10 @@ public class UnitRepairConfigGui extends
     protected String genericDisplayedName() {
         return "this function Should not be used.";
     }
+
     @Override // Not used in this implementation.
-    protected Material createAndSaveNewEmptyGeneric(String name) {
+    protected NamespacedKey createAndSaveNewEmptyGeneric(String name) {
         return null;
     }
+
 }
diff --git a/src/main/java/xyz/alexcrea/cuanvil/gui/config/list/UnitRepairElementListGui.java b/src/main/java/xyz/alexcrea/cuanvil/gui/config/list/UnitRepairElementListGui.java
index c9f2ada2..9b879fdc 100644
--- a/src/main/java/xyz/alexcrea/cuanvil/gui/config/list/UnitRepairElementListGui.java
+++ b/src/main/java/xyz/alexcrea/cuanvil/gui/config/list/UnitRepairElementListGui.java
@@ -3,12 +3,14 @@ package xyz.alexcrea.cuanvil.gui.config.list;
 import com.github.stefvanschie.inventoryframework.gui.GuiItem;
 import com.github.stefvanschie.inventoryframework.gui.type.util.Gui;
 import org.bukkit.Material;
+import org.bukkit.NamespacedKey;
 import org.bukkit.configuration.ConfigurationSection;
 import org.bukkit.entity.HumanEntity;
 import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.inventory.meta.Damageable;
 import org.bukkit.inventory.meta.ItemMeta;
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 import xyz.alexcrea.cuanvil.config.ConfigHolder;
 import xyz.alexcrea.cuanvil.gui.config.ask.SelectItemTypeGui;
 import xyz.alexcrea.cuanvil.gui.config.global.UnitRepairConfigGui;
@@ -17,26 +19,25 @@ import xyz.alexcrea.cuanvil.gui.config.settings.DoubleSettingGui;
 import xyz.alexcrea.cuanvil.gui.util.GuiGlobalItems;
 import xyz.alexcrea.cuanvil.gui.util.GuiSharedConstant;
 import xyz.alexcrea.cuanvil.util.CasedStringUtil;
+import xyz.alexcrea.cuanvil.util.MaterialUtil;
 
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.Collection;
-import java.util.List;
+import java.util.*;
 import java.util.function.Consumer;
 
-public class UnitRepairElementListGui extends SettingGuiListConfigGui<String, DoubleSettingGui.DoubleSettingFactory> implements ElementMappedToListGui {
+public class UnitRepairElementListGui extends SettingGuiListConfigGui<NamespacedKey, DoubleSettingGui.DoubleSettingFactory> implements ElementMappedToListGui {
 
-    private final Material parentMaterial;
+    private final NamespacedKey parentMaterial;
     private final UnitRepairConfigGui parentGui;
     private final String materialName;
 
     private boolean shouldWork = true;
-    public UnitRepairElementListGui(@NotNull Material parentMaterial,
+
+    public UnitRepairElementListGui(@NotNull NamespacedKey parentMaterial,
                                     @NotNull UnitRepairConfigGui parentGui) {
-        super("§e" + CasedStringUtil.snakeToUpperSpacedCase(parentMaterial.name().toLowerCase()) + " §rUnit repair");
+        super("§e" + CasedStringUtil.snakeToUpperSpacedCase(parentMaterial.getKey().toLowerCase()) + " §rUnit repair");
         this.parentMaterial = parentMaterial;
         this.parentGui = parentGui;
-        this.materialName = CasedStringUtil.snakeToUpperSpacedCase(parentMaterial.name().toLowerCase());
+        this.materialName = CasedStringUtil.snakeToUpperSpacedCase(parentMaterial.getKey().toLowerCase());
 
         GuiGlobalItems.addBackItem(this.backgroundPane, parentGui);
     }
@@ -54,7 +55,7 @@ public class UnitRepairElementListGui extends SettingGuiListConfigGui<String, Do
     protected Consumer<InventoryClickEvent> getCreateClickConsumer() {
         return event -> {
             event.setCancelled(true);
-            if(!this.shouldWork){
+            if (!this.shouldWork) {
                 return;
             }
             event.setCancelled(true);
@@ -66,28 +67,28 @@ public class UnitRepairElementListGui extends SettingGuiListConfigGui<String, Do
                     this,
                     (itemStack, player) -> {
                         ItemMeta meta = itemStack.getItemMeta();
-                        Material type = itemStack.getType();
+                        NamespacedKey type = MaterialUtil.INSTANCE.getCustomType(itemStack);
 
-                        if(!(meta instanceof Damageable) || (type.getMaxDurability() <= 0)) {
+                        if (!(meta instanceof Damageable)) {
                             player.sendMessage("§cThis item can't be damaged, so it can't be repaired.");
                             return;
                         }
-                        if(type == this.parentMaterial){
+                        if (type.equals(this.parentMaterial)) {
                             player.sendMessage("§cItem can't repair something of the same type.");
                             return;
                         }
 
-                        String materialName = type.name().toLowerCase();
+                        String materialName = type.toString();
 
                         // Add new material
-                        ConfigHolder.UNIT_REPAIR_HOLDER.getConfig().set(parentMaterial.name().toLowerCase() + "." + materialName,0.25);
+                        ConfigHolder.UNIT_REPAIR_HOLDER.getConfig().set(parentMaterial.toString().toLowerCase() + "." + materialName, 0.25);
 
                         if (GuiSharedConstant.TEMPORARY_DO_SAVE_TO_DISK_EVERY_CHANGE) {
                             ConfigHolder.UNIT_REPAIR_HOLDER.saveToDisk(GuiSharedConstant.TEMPORARY_DO_BACKUP_EVERY_SAVE);
                         }
 
                         // Update gui
-                        updateValueForGeneric(materialName, true);
+                        updateValueForGeneric(type, true);
                         this.parentGui.updateValueForGeneric(this.parentMaterial, true);
 
 
@@ -106,17 +107,17 @@ public class UnitRepairElementListGui extends SettingGuiListConfigGui<String, Do
     }
 
     @Override
-    protected DoubleSettingGui.DoubleSettingFactory createFactory(String materialName) {
-        String materialDisplayName = CasedStringUtil.snakeToUpperSpacedCase(materialName);
+    protected DoubleSettingGui.DoubleSettingFactory createFactory(NamespacedKey materialName) {
+        String materialDisplayName = CasedStringUtil.snakeToUpperSpacedCase(materialName.getKey());
 
         return new DoubleSettingGui.DoubleSettingFactory(
-                "§0%§8" + materialDisplayName +" Repair",
+                "§0%§8" + materialDisplayName + " Repair",
                 this,
                 ConfigHolder.UNIT_REPAIR_HOLDER,
-                this.parentMaterial.name().toLowerCase()+"."+materialName,
+                this.parentMaterial.toString().toLowerCase() + "." + materialName,
                 Arrays.asList(
                         "§7Click here to change how many §e% §7of §a" + materialDisplayName,
-                        "§7Should get repaired by §e"+this.materialName
+                        "§7Should get repaired by §e" + this.materialName
                 ),
                 2,
                 true, true,
@@ -128,29 +129,40 @@ public class UnitRepairElementListGui extends SettingGuiListConfigGui<String, Do
     }
 
     @Override
-    protected GuiItem itemFromFactory(String materialName, DoubleSettingGui.DoubleSettingFactory factory) {
+    protected GuiItem itemFromFactory(NamespacedKey materialName, DoubleSettingGui.DoubleSettingFactory factory) {
         return factory.getItem(materialFromName(materialName),
-                "§7%§a" + CasedStringUtil.snakeToUpperSpacedCase(materialName)+ " §erepaired by §a" + this.materialName);
+                "§7%§a" + CasedStringUtil.snakeToUpperSpacedCase(materialName.getKey()) + " §erepaired by §a" + this.materialName);
     }
 
     @Override
-    protected Collection<String> getEveryInstanceOfGeneric() {
-        ArrayList<String> keys = new ArrayList<>();
-        if(!this.shouldWork){
+    protected Collection<NamespacedKey> getEveryInstanceOfGeneric() {
+        Set<NamespacedKey> keys = new HashSet<>();
+        if (!this.shouldWork) {
             return keys;
         }
 
-        ConfigurationSection materialSection = ConfigHolder.UNIT_REPAIR_HOLDER.getConfig().getConfigurationSection(parentMaterial.name().toLowerCase());
-        if(materialSection == null){
-            return keys;
-        }
-        keys.addAll(materialSection.getKeys(false));
+        ConfigurationSection legacySection = ConfigHolder.UNIT_REPAIR_HOLDER.getConfig().getConfigurationSection(parentMaterial.getKey().toLowerCase());
+        ConfigurationSection materialSection = ConfigHolder.UNIT_REPAIR_HOLDER.getConfig().getConfigurationSection(parentMaterial.toString().toLowerCase());
+
+        addAllKeys(legacySection, keys);
+        addAllKeys(materialSection, keys);
+
         return keys;
     }
 
-    private Material materialFromName(String materialName){
-        Material mat = Material.getMaterial(materialName.toUpperCase());
-        if(mat == null || mat.isAir()) return Material.BARRIER;
+    private void addAllKeys(@Nullable ConfigurationSection section, @NotNull Set<NamespacedKey> keys) {
+        if (section == null) return;
+        for (var key : section.getKeys(false)) {
+            var material = NamespacedKey.fromString(key);
+            if (material == null) continue;
+
+            keys.add(material);
+        }
+    }
+
+    private Material materialFromName(NamespacedKey material) {
+        Material mat = MaterialUtil.INSTANCE.getMatFromKey(material);
+        if (mat == null || mat.isAir()) return Material.BARRIER;
         return mat;
     }
 
@@ -163,7 +175,8 @@ public class UnitRepairElementListGui extends SettingGuiListConfigGui<String, Do
     // ElementMappedToListGui methods
 
     @Override // Not used in this implementation
-    public void updateLocal() {}
+    public void updateLocal() {
+    }
 
     @Override
     public void cleanAndBeUnusable() {
@@ -185,7 +198,7 @@ public class UnitRepairElementListGui extends SettingGuiListConfigGui<String, Do
 
     @Override
     public void show(@NotNull HumanEntity humanEntity) {
-        if(!this.shouldWork){
+        if (!this.shouldWork) {
             humanEntity.closeInventory();
             return;
         }
diff --git a/src/main/kotlin/xyz/alexcrea/cuanvil/util/MaterialUtil.kt b/src/main/kotlin/xyz/alexcrea/cuanvil/util/MaterialUtil.kt
index 6b55662f..dc1e25a9 100644
--- a/src/main/kotlin/xyz/alexcrea/cuanvil/util/MaterialUtil.kt
+++ b/src/main/kotlin/xyz/alexcrea/cuanvil/util/MaterialUtil.kt
@@ -6,6 +6,7 @@ import org.bukkit.NamespacedKey
 import org.bukkit.inventory.ItemStack
 import xyz.alexcrea.cuanvil.dependency.DependencyManager
 import xyz.alexcrea.cuanvil.dependency.plugins.EcoItemDependencyUtil
+import javax.annotation.Nullable
 
 object MaterialUtil {
 
@@ -35,11 +36,13 @@ object MaterialUtil {
             return this.type.key
         }
 
+    @Nullable
     private fun bukkitMaterialFromKey(key: NamespacedKey): Material? {
         //TODO on paper only transition Registry.MATERIAL.get(key)
         return Material.matchMaterial(key.toString())
     }
 
+    @Nullable
     fun getMatFromKey(key: NamespacedKey): Material? {
         if(DependencyManager.ecoEnchantCompatibility != null) {
             val result = EcoItemDependencyUtil.ecoItemMaterialFromKey(key)
diff --git a/src/main/kotlin/xyz/alexcrea/cuanvil/util/UnitRepairUtil.kt b/src/main/kotlin/xyz/alexcrea/cuanvil/util/UnitRepairUtil.kt
index 85c32f93..642a047d 100644
--- a/src/main/kotlin/xyz/alexcrea/cuanvil/util/UnitRepairUtil.kt
+++ b/src/main/kotlin/xyz/alexcrea/cuanvil/util/UnitRepairUtil.kt
@@ -13,7 +13,7 @@ object UnitRepairUtil {
     private const val DEFAULT_DEFAULT_UNIT_REPAIR = 0.25
 
     // Path to user default unit repair value
-    private const val UNIT_REPAIR_DEFAULT_PATH = "default_repair_amount"
+    public const val UNIT_REPAIR_DEFAULT_PATH = "default_repair_amount"
 
     /**
      * Get the % of repair by unit [other] will do to this [ItemStack].
@@ -25,14 +25,9 @@ object UnitRepairUtil {
         if (other == null) return null
         val config = ConfigHolder.UNIT_REPAIR_HOLDER.config
 
-        val material = other.customType
-        val selfType = this.customType
+        val result = findRepairValue(this, other, config) ?: return null
 
-        var result = checkSection(config, material.toString(), selfType)
-        if (result != null) return result
-
-        result = checkSection(config, material.key, selfType)
-        if (result != null) return result
+        if(result > 0) return result
 
         // Get default
         val userDefault = config.getDouble(UNIT_REPAIR_DEFAULT_PATH, DEFAULT_DEFAULT_UNIT_REPAIR)
@@ -41,6 +36,20 @@ object UnitRepairUtil {
         return userDefault
     }
 
+    private fun findRepairValue(
+        self: ItemStack,
+        other: ItemStack,
+        config: FileConfiguration
+    ): Double? {
+        val material = other.customType
+        val selfType = self.customType
+
+        val result = checkSection(config, material.toString(), selfType)
+        if (result != null) return result
+
+        return checkSection(config, material.key, selfType)
+    }
+
     fun checkSection(
         config: FileConfiguration,
         path: String,