diff --git a/core/src/main/java/org/geysermc/geyser/item/GeyserCustomItemData.java b/core/src/main/java/org/geysermc/geyser/item/GeyserCustomItemData.java
index a2054f78a..3063ef8dc 100644
--- a/core/src/main/java/org/geysermc/geyser/item/GeyserCustomItemData.java
+++ b/core/src/main/java/org/geysermc/geyser/item/GeyserCustomItemData.java
@@ -37,6 +37,7 @@ import java.util.HashSet;
 import java.util.Objects;
 import java.util.OptionalInt;
 import java.util.Set;
+import org.geysermc.geyser.api.item.custom.NonVanillaCustomItemData;
 
 @EqualsAndHashCode
 @ToString
@@ -52,29 +53,39 @@ public class GeyserCustomItemData implements CustomItemData {
     private final int textureSize;
     private final CustomRenderOffsets renderOffsets;
     private final Set<String> tags;
+    private final int stackSize;
+    private final int maxDamage;
+    private final int attackDamage;
+    private final String toolType;
+    private final String toolTier;
+    private final String translationString;
+    private final int protectionValue;
+    private final boolean isFoil;
+    private final boolean isEdible;
+    private final boolean canAlwaysEat;
 
-    public GeyserCustomItemData(String name,
-                                CustomItemOptions customItemOptions,
-                                String displayName,
-                                String icon,
-                                boolean allowOffhand,
-                                boolean displayHandheld,
-                                OptionalInt creativeCategory,
-                                String creativeGroup,
-                                int textureSize,
-                                CustomRenderOffsets renderOffsets,
-                                Set<String> tags) {
-        this.name = name;
-        this.customItemOptions = customItemOptions;
-        this.displayName = displayName;
-        this.icon = icon;
-        this.allowOffhand = allowOffhand;
-        this.displayHandheld = displayHandheld;
-        this.creativeCategory = creativeCategory;
-        this.creativeGroup = creativeGroup;
-        this.textureSize = textureSize;
-        this.renderOffsets = renderOffsets;
-        this.tags = tags;
+    public GeyserCustomItemData(Builder builder) {
+        this.name = builder.name;
+        this.customItemOptions = builder.customItemOptions;
+        this.displayName = builder.displayName;
+        this.icon = builder.icon;
+        this.allowOffhand = builder.allowOffhand;
+        this.displayHandheld = builder.displayHandheld;
+        this.creativeCategory = builder.creativeCategory;
+        this.creativeGroup = builder.creativeGroup;
+        this.textureSize = builder.textureSize;
+        this.renderOffsets = builder.renderOffsets;
+        this.tags = builder.tags;
+        this.stackSize = builder.stackSize;
+        this.maxDamage = builder.maxDamage;
+        this.attackDamage = builder.attackDamage;
+        this.toolType = builder.toolType;
+        this.toolTier = builder.toolTier;
+        this.translationString = builder.translationString;
+        this.protectionValue = builder.protectionValue;
+        this.isFoil = builder.foil;
+        this.isEdible = builder.edible;
+        this.canAlwaysEat = builder.canAlwaysEat;
     }
 
     @Override
@@ -132,6 +143,56 @@ public class GeyserCustomItemData implements CustomItemData {
         return tags;
     }
 
+    @Override
+    public int stackSize() {
+        return stackSize;
+    }
+
+    @Override
+    public int maxDamage() {
+        return maxDamage;
+    }
+
+    @Override
+    public int attackDamage() {
+        return attackDamage;
+    }
+
+    @Override
+    public String toolType() {
+        return toolType;
+    }
+
+    @Override
+    public String toolTier() {
+        return toolTier;
+    }
+
+    @Override
+    public int protectionValue() {
+        return protectionValue;
+    }
+
+    @Override
+    public String translationString() {
+        return translationString;
+    }
+
+    @Override
+    public boolean isFoil() {
+        return isFoil;
+    }
+
+    @Override
+    public boolean isEdible() {
+        return isEdible;
+    }
+
+    @Override
+    public boolean canAlwaysEat() {
+        return canAlwaysEat;
+    }
+
     public static class Builder implements CustomItemData.Builder {
         protected String name = null;
         protected CustomItemOptions customItemOptions = null;
@@ -144,6 +205,17 @@ public class GeyserCustomItemData implements CustomItemData {
         protected int textureSize = 16;
         protected CustomRenderOffsets renderOffsets = null;
         protected Set<String> tags = new HashSet<>();
+        private int stackSize = 64;
+        private int maxDamage = 0;
+        private int attackDamage = 0;
+        private String toolType = null;
+        private String toolTier = null;
+        private int protectionValue = 0;
+        private String translationString;
+        private boolean foil = false;
+        private boolean tool = false;
+        private boolean edible = false;
+        private boolean canAlwaysEat = false;
 
         @Override
         public Builder name(@NonNull String name) {
@@ -211,6 +283,66 @@ public class GeyserCustomItemData implements CustomItemData {
             return this;
         }
 
+        @Override
+        public Builder stackSize(int stackSize) {
+            this.stackSize = stackSize;
+            return this;
+        }
+
+        @Override
+        public Builder maxDamage(int maxDamage) {
+            this.maxDamage = maxDamage;
+            return this;
+        }
+
+        @Override
+        public Builder attackDamage(int attackDamage) {
+            this.attackDamage = attackDamage;
+            return this;
+        }
+
+        @Override
+        public Builder toolType(@Nullable String toolType) {
+            this.toolType = toolType;
+            return this;
+        }
+
+        @Override
+        public Builder toolTier(@Nullable String toolTier) {
+            this.toolTier = toolTier;
+            return this;
+        }
+
+        @Override
+        public Builder protectionValue(int protectionValue) {
+            this.protectionValue = protectionValue;
+            return this;
+        }
+
+        @Override
+        public Builder translationString(@Nullable String translationString) {
+            this.translationString = translationString;
+            return this;
+        }
+
+        @Override
+        public Builder foil(boolean isFoil) {
+            this.foil = isFoil;
+            return this;
+        }
+
+        @Override
+        public Builder edible(boolean isEdible) {
+            this.edible = isEdible;
+            return this;
+        }
+
+        @Override
+        public Builder canAlwaysEat(boolean canAlwaysEat) {
+            this.canAlwaysEat = canAlwaysEat;
+            return this;
+        }
+
         @Override
         public CustomItemData build() {
             if (this.name == null || this.customItemOptions == null) {
@@ -223,8 +355,8 @@ public class GeyserCustomItemData implements CustomItemData {
             if (this.icon == null) {
                 this.icon = this.name;
             }
-            return new GeyserCustomItemData(this.name, this.customItemOptions, this.displayName, this.icon, this.allowOffhand,
-                    this.displayHandheld, this.creativeCategory, this.creativeGroup, this.textureSize, this.renderOffsets, this.tags);
+
+            return new GeyserCustomItemData(this);
         }
     }
 }
diff --git a/core/src/main/java/org/geysermc/geyser/item/GeyserNonVanillaCustomItemData.java b/core/src/main/java/org/geysermc/geyser/item/GeyserNonVanillaCustomItemData.java
index 9c9269df3..160c74c10 100644
--- a/core/src/main/java/org/geysermc/geyser/item/GeyserNonVanillaCustomItemData.java
+++ b/core/src/main/java/org/geysermc/geyser/item/GeyserNonVanillaCustomItemData.java
@@ -40,44 +40,20 @@ import java.util.Set;
 public final class GeyserNonVanillaCustomItemData extends GeyserCustomItemData implements NonVanillaCustomItemData {
     private final String identifier;
     private final int javaId;
-    private final int stackSize;
-    private final int maxDamage;
-    private final int attackDamage;
-    private final String toolType;
-    private final String toolTier;
     private final String armorType;
-    private final int protectionValue;
-    private final String translationString;
     private final Set<String> repairMaterials;
     private final boolean isHat;
-    private final boolean isFoil;
-    private final boolean isTool;
-    private final boolean isEdible;
-    private final boolean canAlwaysEat;
     private final boolean isChargeable;
     private final String block;
 
     public GeyserNonVanillaCustomItemData(Builder builder) {
-        super(builder.name, builder.customItemOptions, builder.displayName, builder.icon, builder.allowOffhand,
-                builder.displayHandheld, builder.creativeCategory, builder.creativeGroup,
-                builder.textureSize, builder.renderOffsets, builder.tags);
+        super(builder);
 
         this.identifier = builder.identifier;
         this.javaId = builder.javaId;
-        this.stackSize = builder.stackSize;
-        this.maxDamage = builder.maxDamage;
-        this.attackDamage = builder.attackDamage;
-        this.toolType = builder.toolType;
-        this.toolTier = builder.toolTier;
         this.armorType = builder.armorType;
-        this.protectionValue = builder.protectionValue;
-        this.translationString = builder.translationString;
         this.repairMaterials = builder.repairMaterials;
         this.isHat = builder.hat;
-        this.isFoil = builder.foil;
-        this.isTool = builder.tool;
-        this.isEdible = builder.edible;
-        this.canAlwaysEat = builder.canAlwaysEat;
         this.isChargeable = builder.chargeable;
         this.block = builder.block;
     }
@@ -92,46 +68,11 @@ public final class GeyserNonVanillaCustomItemData extends GeyserCustomItemData i
         return javaId;
     }
 
-    @Override
-    public int stackSize() {
-        return stackSize;
-    }
-
-    @Override
-    public int maxDamage() {
-        return maxDamage;
-    }
-
-    @Override
-    public int attackDamage() {
-        return attackDamage;
-    }
-
-    @Override
-    public String toolType() {
-        return toolType;
-    }
-
-    @Override
-    public String toolTier() {
-        return toolTier;
-    }
-
     @Override
     public @Nullable String armorType() {
         return armorType;
     }
 
-    @Override
-    public int protectionValue() {
-        return protectionValue;
-    }
-
-    @Override
-    public String translationString() {
-        return translationString;
-    }
-
     @Override
     public Set<String> repairMaterials() {
         return repairMaterials;
@@ -142,21 +83,6 @@ public final class GeyserNonVanillaCustomItemData extends GeyserCustomItemData i
         return isHat;
     }
 
-    @Override
-    public boolean isFoil() {
-        return isFoil;
-    }
-
-    @Override
-    public boolean isEdible() {
-        return isEdible;
-    }
-
-    @Override
-    public boolean canAlwaysEat() {
-        return canAlwaysEat;
-    }
-
     @Override
     public boolean isChargeable() {
         return isChargeable;
@@ -170,28 +96,9 @@ public final class GeyserNonVanillaCustomItemData extends GeyserCustomItemData i
     public static class Builder extends GeyserCustomItemData.Builder implements NonVanillaCustomItemData.Builder {
         private String identifier = null;
         private int javaId = -1;
-
-        private int stackSize = 64;
-
-        private int maxDamage = 0;
-
-        private int attackDamage = 0;
-
-        private String toolType = null;
-        private String toolTier = null;
-
         private String armorType = null;
-        private int protectionValue = 0;
-
-        private String translationString;
-
         private Set<String> repairMaterials;
-
         private boolean hat = false;
-        private boolean foil = false;
-        private boolean tool = false;
-        private boolean edible = false;
-        private boolean canAlwaysEat = false;
         private boolean chargeable = false;
         private String block = null;
 
@@ -253,54 +160,12 @@ public final class GeyserNonVanillaCustomItemData extends GeyserCustomItemData i
             return this;
         }
 
-        @Override
-        public Builder stackSize(int stackSize) {
-            this.stackSize = stackSize;
-            return this;
-        }
-
-        @Override
-        public Builder maxDamage(int maxDamage) {
-            this.maxDamage = maxDamage;
-            return this;
-        }
-
-        @Override
-        public NonVanillaCustomItemData.Builder attackDamage(int attackDamage) {
-            this.attackDamage = attackDamage;
-            return this;
-        }
-
-        @Override
-        public Builder toolType(@Nullable String toolType) {
-            this.toolType = toolType;
-            return this;
-        }
-
-        @Override
-        public Builder toolTier(@Nullable String toolTier) {
-            this.toolTier = toolTier;
-            return this;
-        }
-
         @Override
         public Builder armorType(@Nullable String armorType) {
             this.armorType = armorType;
             return this;
         }
 
-        @Override
-        public Builder protectionValue(int protectionValue) {
-            this.protectionValue = protectionValue;
-            return this;
-        }
-
-        @Override
-        public Builder translationString(@Nullable String translationString) {
-            this.translationString = translationString;
-            return this;
-        }
-
         @Override
         public Builder repairMaterials(@Nullable Set<String> repairMaterials) {
             this.repairMaterials = repairMaterials;
@@ -323,24 +188,6 @@ public final class GeyserNonVanillaCustomItemData extends GeyserCustomItemData i
             return this;
         }
 
-        @Override
-        public Builder foil(boolean isFoil) {
-            this.foil = isFoil;
-            return this;
-        }
-
-        @Override
-        public Builder edible(boolean isEdible) {
-            this.edible = isEdible;
-            return this;
-        }
-
-        @Override
-        public Builder canAlwaysEat(boolean canAlwaysEat) {
-            this.canAlwaysEat = canAlwaysEat;
-            return this;
-        }
-
         @Override
         public Builder chargeable(boolean isChargeable) {
             this.chargeable = isChargeable;