diff --git a/src/main/java/cn/nukkit/block/BlockFullNames.java b/src/main/java/cn/nukkit/block/BlockFullNames.java
index 29b3862d84d..7e6f2df4aea 100644
--- a/src/main/java/cn/nukkit/block/BlockFullNames.java
+++ b/src/main/java/cn/nukkit/block/BlockFullNames.java
@@ -278,6 +278,7 @@ public interface BlockFullNames {
     String WHITE_CONCRETE_POWDER = "minecraft:" + BlockNames.WHITE_CONCRETE_POWDER; //TODO: 1.20.30 flattening
     String CONCRETE_POWDER = "minecraft:" + BlockNames.CONCRETE_POWDER; //TODO: 1.18.30 rename
     String CONCRETE_POWDER_NEW = "minecraft:" + BlockNames.CONCRETE_POWDER_NEW;
+    String COMPOUND_CREATOR = "minecraft:" + BlockNames.COMPOUND_CREATOR; //TODO: 1.21.30 flattening
     String CHEMISTRY_TABLE = "minecraft:" + BlockNames.CHEMISTRY_TABLE;
     String UNDERWATER_TORCH = "minecraft:" + BlockNames.UNDERWATER_TORCH;
     String CHORUS_PLANT = "minecraft:" + BlockNames.CHORUS_PLANT;
@@ -1288,4 +1289,8 @@ public interface BlockFullNames {
     String RED_SANDSTONE_WALL = "minecraft:" + BlockNames.RED_SANDSTONE_WALL;
     String RED_NETHER_BRICK_WALL = "minecraft:" + BlockNames.RED_NETHER_BRICK_WALL;
     String WET_SPONGE = "minecraft:" + BlockNames.WET_SPONGE;
+    String UNDERWATER_TNT = "minecraft:" + BlockNames.UNDERWATER_TNT;
+    String MATERIAL_REDUCER = "minecraft:" + BlockNames.MATERIAL_REDUCER;
+    String ELEMENT_CONSTRUCTOR = "minecraft:" + BlockNames.ELEMENT_CONSTRUCTOR;
+    String LAB_TABLE = "minecraft:" + BlockNames.LAB_TABLE;
 }
diff --git a/src/main/java/cn/nukkit/block/BlockID.java b/src/main/java/cn/nukkit/block/BlockID.java
index 1d19465712d..313bd3c93b0 100644
--- a/src/main/java/cn/nukkit/block/BlockID.java
+++ b/src/main/java/cn/nukkit/block/BlockID.java
@@ -311,6 +311,7 @@ public interface BlockID {
      */
     @Deprecated
     int CONCRETEPOWDER = 237;
+    int COMPOUND_CREATOR = 238; //TODO: 1.21.30 flattening
     int CHEMISTRY_TABLE = 238;
     int UNDERWATER_TORCH = 239;
     int CHORUS_PLANT = 240;
@@ -1329,7 +1330,11 @@ public interface BlockID {
     int RED_SANDSTONE_WALL = 1237;
     int RED_NETHER_BRICK_WALL = 1238;
     int WET_SPONGE = 1239;
+    int UNDERWATER_TNT = 1240;
+    int MATERIAL_REDUCER = 1241;
+    int ELEMENT_CONSTRUCTOR = 1242;
+    int LAB_TABLE = 1243;
 
 
-    int UNDEFINED = 1240;
+    int UNDEFINED = 1244;
 }
diff --git a/src/main/java/cn/nukkit/block/BlockNames.java b/src/main/java/cn/nukkit/block/BlockNames.java
index 915af0a8f94..01f3f3bd210 100644
--- a/src/main/java/cn/nukkit/block/BlockNames.java
+++ b/src/main/java/cn/nukkit/block/BlockNames.java
@@ -277,6 +277,7 @@ public interface BlockNames {
     String WHITE_CONCRETE_POWDER = "white_concrete_powder"; //TODO: 1.20.30 flattening
     String CONCRETE_POWDER = "concretePowder"; //TODO: 1.18.30 rename
     String CONCRETE_POWDER_NEW = "concrete_powder";
+    String COMPOUND_CREATOR = "compound_creator"; //TODO: 1.21.30 flattening
     String CHEMISTRY_TABLE = "chemistry_table";
     String UNDERWATER_TORCH = "underwater_torch";
     String CHORUS_PLANT = "chorus_plant";
@@ -1287,4 +1288,8 @@ public interface BlockNames {
     String RED_SANDSTONE_WALL = "red_sandstone_wall";
     String RED_NETHER_BRICK_WALL = "red_nether_brick_wall";
     String WET_SPONGE = "wet_sponge";
+    String UNDERWATER_TNT = "underwater_tnt";
+    String MATERIAL_REDUCER = "material_reducer";
+    String ELEMENT_CONSTRUCTOR = "element_constructor";
+    String LAB_TABLE = "lab_table";
 }
diff --git a/src/main/java/cn/nukkit/block/BlockSnowLayer.java b/src/main/java/cn/nukkit/block/BlockSnowLayer.java
index 78e41bf7f5a..a4d4d680884 100644
--- a/src/main/java/cn/nukkit/block/BlockSnowLayer.java
+++ b/src/main/java/cn/nukkit/block/BlockSnowLayer.java
@@ -280,6 +280,20 @@ protected int getFallingBlockDamage() {
         return getDamage() & HEIGHT_MASK;
     }
 
+    @Override
+    public boolean canSilkTouch() {
+        return true;
+    }
+
+    @Override
+    public Item getSilkTouchResource() {
+        int height = getDamage() & HEIGHT_MASK;
+        if (height == HEIGHT_MASK) {
+            return Item.get(SNOW);
+        }
+        return Item.get(SNOW_LAYER, 0, 1 + height);
+    }
+
     public boolean isCovered() {
         return (getDamage() & COVERED_BIT) != 0;
     }
diff --git a/src/main/java/cn/nukkit/block/BlockTNT.java b/src/main/java/cn/nukkit/block/BlockTNT.java
index 2dbad3a9845..36d08e71719 100644
--- a/src/main/java/cn/nukkit/block/BlockTNT.java
+++ b/src/main/java/cn/nukkit/block/BlockTNT.java
@@ -21,20 +21,25 @@
  * Package cn.nukkit.block in project Nukkit .
  */
 public class BlockTNT extends BlockSolidMeta {
+    public static final int EXPLODE_BIT = 0b1;
+    public static final int ALLOW_UNDERWATER_BIT = 0b10;
+
+    private static final String[] NAMES = {
+            "TNT",
+            "Underwater TNT",
+    };
 
     public BlockTNT() {
         this(0);
     }
 
     public BlockTNT(int meta) {
-        // 0b1 allow_underwater_bit
-        // 0b10 explode_bit
-        super(meta & 0b11);
+        super(meta);
     }
 
     @Override
     public String getName() {
-        return "TNT";
+        return NAMES[(getDamage() & 0b11) >> 1];
     }
 
     @Override
diff --git a/src/main/java/cn/nukkit/block/Blocks.java b/src/main/java/cn/nukkit/block/Blocks.java
index 8bf47e51c05..216fbda62a6 100644
--- a/src/main/java/cn/nukkit/block/Blocks.java
+++ b/src/main/java/cn/nukkit/block/Blocks.java
@@ -1341,6 +1341,13 @@ private static void registerComplexAliases() {
 
         registerComplexAlias(ItemBlockNames.COLORED_TORCH_BLUE, COLORED_TORCH_BP, BlockTorchColoredBluePurple.BLUE, V1_21_30);
         registerComplexAlias(ItemBlockNames.COLORED_TORCH_PURPLE, COLORED_TORCH_BP, BlockTorchColoredBluePurple.PURPLE, V1_21_30);
+
+        registerComplexAlias(ItemBlockNames.COMPOUND_CREATOR, CHEMISTRY_TABLE, BlockChemistryTable.TYPE_COMPOUND_CREATOR, V1_21_30);
+        registerComplexAlias(ItemBlockNames.MATERIAL_REDUCER, CHEMISTRY_TABLE, BlockChemistryTable.TYPE_MATERIAL_REDUCER, V1_21_30);
+        registerComplexAlias(ItemBlockNames.ELEMENT_CONSTRUCTOR, CHEMISTRY_TABLE, BlockChemistryTable.TYPE_ELEMENT_CONSTRUCTOR, V1_21_30);
+        registerComplexAlias(ItemBlockNames.LAB_TABLE, CHEMISTRY_TABLE, BlockChemistryTable.TYPE_LAB_TABLE, V1_21_30);
+
+        registerComplexAlias(ItemBlockNames.UNDERWATER_TNT, TNT, BlockTNT.ALLOW_UNDERWATER_BIT, V1_21_30);
 */
     }
 
diff --git a/src/main/java/cn/nukkit/block/edu/BlockChemistryTable.java b/src/main/java/cn/nukkit/block/edu/BlockChemistryTable.java
index d330b0cc77f..f61fdb90ba5 100644
--- a/src/main/java/cn/nukkit/block/edu/BlockChemistryTable.java
+++ b/src/main/java/cn/nukkit/block/edu/BlockChemistryTable.java
@@ -19,10 +19,10 @@ public class BlockChemistryTable extends BlockSolidMeta {
     public static final int DIRECTION_MASK = 0b11;
     public static final int DIRECTION_BITS = 2;
 
-    public static final int COMPOUND_CREATOR = 0;
-    public static final int MATERIAL_REDUCER = 1 << DIRECTION_BITS;
-    public static final int ELEMENT_CONSTRUCTOR = 2 << DIRECTION_BITS;
-    public static final int LAB_TABLE = 3 << DIRECTION_BITS;
+    public static final int TYPE_COMPOUND_CREATOR = 0;
+    public static final int TYPE_MATERIAL_REDUCER = 1 << DIRECTION_BITS;
+    public static final int TYPE_ELEMENT_CONSTRUCTOR = 2 << DIRECTION_BITS;
+    public static final int TYPE_LAB_TABLE = 3 << DIRECTION_BITS;
 
     private static final String[] NAMES = {
             "Compound Creator",
diff --git a/src/main/java/cn/nukkit/item/ItemBlockFullNames.java b/src/main/java/cn/nukkit/item/ItemBlockFullNames.java
index ce61a1adcdd..8d1b5ba4ff4 100644
--- a/src/main/java/cn/nukkit/item/ItemBlockFullNames.java
+++ b/src/main/java/cn/nukkit/item/ItemBlockFullNames.java
@@ -358,6 +358,7 @@ public interface ItemBlockFullNames {
     String CONCRETE = "minecraft:" + ItemBlockNames.CONCRETE;
     String WHITE_CONCRETE_POWDER = "minecraft:" + ItemBlockNames.WHITE_CONCRETE_POWDER; //TODO: 1.20.30 flattening
     String CONCRETE_POWDER = "minecraft:" + ItemBlockNames.CONCRETE_POWDER;
+    String COMPOUND_CREATOR = "minecraft:" + ItemBlockNames.COMPOUND_CREATOR; //TODO: 1.21.30 flattening
     String CHEMISTRY_TABLE = "minecraft:" + ItemBlockNames.CHEMISTRY_TABLE;
     String UNDERWATER_TORCH = "minecraft:" + ItemBlockNames.UNDERWATER_TORCH;
     String CHORUS_PLANT = "minecraft:" + ItemBlockNames.CHORUS_PLANT;
@@ -1368,4 +1369,8 @@ public interface ItemBlockFullNames {
     String RED_SANDSTONE_WALL = "minecraft:" + ItemBlockNames.RED_SANDSTONE_WALL;
     String RED_NETHER_BRICK_WALL = "minecraft:" + ItemBlockNames.RED_NETHER_BRICK_WALL;
     String WET_SPONGE = "minecraft:" + ItemBlockNames.WET_SPONGE;
+    String UNDERWATER_TNT = "minecraft:" + ItemBlockNames.UNDERWATER_TNT;
+    String MATERIAL_REDUCER = "minecraft:" + ItemBlockNames.MATERIAL_REDUCER;
+    String ELEMENT_CONSTRUCTOR = "minecraft:" + ItemBlockNames.ELEMENT_CONSTRUCTOR;
+    String LAB_TABLE = "minecraft:" + ItemBlockNames.LAB_TABLE;
 }
diff --git a/src/main/java/cn/nukkit/item/ItemBlockID.java b/src/main/java/cn/nukkit/item/ItemBlockID.java
index 9110e5fecf1..df72ffec976 100644
--- a/src/main/java/cn/nukkit/item/ItemBlockID.java
+++ b/src/main/java/cn/nukkit/item/ItemBlockID.java
@@ -313,6 +313,7 @@ public interface ItemBlockID {
      */
     @Deprecated
     int CONCRETEPOWDER = 237;
+    int COMPOUND_CREATOR = 238;
     int CHEMISTRY_TABLE = 238;
     int UNDERWATER_TORCH = 239;
     int CHORUS_PLANT = 240;
@@ -1331,6 +1332,10 @@ public interface ItemBlockID {
     int RED_SANDSTONE_WALL = 0xff - BlockID.RED_SANDSTONE_WALL;
     int RED_NETHER_BRICK_WALL = 0xff - BlockID.RED_NETHER_BRICK_WALL;
     int WET_SPONGE = 0xff - BlockID.WET_SPONGE;
+    int UNDERWATER_TNT = 0xff - BlockID.UNDERWATER_TNT;
+    int MATERIAL_REDUCER = 0xff - BlockID.MATERIAL_REDUCER;
+    int ELEMENT_CONSTRUCTOR = 0xff - BlockID.ELEMENT_CONSTRUCTOR;
+    int LAB_TABLE = 0xff - BlockID.LAB_TABLE;
 
 
     int UNDEFINED = 0xff - BlockID.UNDEFINED;
diff --git a/src/main/java/cn/nukkit/item/ItemBlockNames.java b/src/main/java/cn/nukkit/item/ItemBlockNames.java
index 57adc6eee58..927a2fdeb9c 100644
--- a/src/main/java/cn/nukkit/item/ItemBlockNames.java
+++ b/src/main/java/cn/nukkit/item/ItemBlockNames.java
@@ -357,6 +357,7 @@ public interface ItemBlockNames {
     String CONCRETE = "concrete";
     String WHITE_CONCRETE_POWDER = "white_concrete_powder"; //TODO: 1.20.30 flattening
     String CONCRETE_POWDER = "concrete_powder";
+    String COMPOUND_CREATOR = "compound_creator"; //TODO: 1.21.30 flattening
     String CHEMISTRY_TABLE = "chemistry_table";
     String UNDERWATER_TORCH = "underwater_torch";
     String CHORUS_PLANT = "chorus_plant";
@@ -1367,4 +1368,8 @@ public interface ItemBlockNames {
     String RED_SANDSTONE_WALL = "red_sandstone_wall";
     String RED_NETHER_BRICK_WALL = "red_nether_brick_wall";
     String WET_SPONGE = "wet_sponge";
+    String UNDERWATER_TNT = "underwater_tnt";
+    String MATERIAL_REDUCER = "material_reducer";
+    String ELEMENT_CONSTRUCTOR = "element_constructor";
+    String LAB_TABLE = "lab_table";
 }
diff --git a/src/main/java/cn/nukkit/item/ItemFullNames.java b/src/main/java/cn/nukkit/item/ItemFullNames.java
index 7bc8c3c5d96..09559b2ba61 100644
--- a/src/main/java/cn/nukkit/item/ItemFullNames.java
+++ b/src/main/java/cn/nukkit/item/ItemFullNames.java
@@ -745,4 +745,5 @@ public interface ItemFullNames extends ItemBlockNames {
     String BOLT_ARMOR_TRIM_SMITHING_TEMPLATE = "minecraft:" + ItemNames.BOLT_ARMOR_TRIM_SMITHING_TEMPLATE;
     String FLOW_BANNER_PATTERN = "minecraft:" + ItemNames.FLOW_BANNER_PATTERN;
     String GUSTER_BANNER_PATTERN = "minecraft:" + ItemNames.GUSTER_BANNER_PATTERN;
+    String BUNDLE = "minecraft:" + ItemNames.BUNDLE;
 }
diff --git a/src/main/java/cn/nukkit/item/ItemNames.java b/src/main/java/cn/nukkit/item/ItemNames.java
index d90acad2ffb..df23ade7d0c 100644
--- a/src/main/java/cn/nukkit/item/ItemNames.java
+++ b/src/main/java/cn/nukkit/item/ItemNames.java
@@ -744,4 +744,5 @@ public interface ItemNames extends ItemBlockNames {
     String BOLT_ARMOR_TRIM_SMITHING_TEMPLATE = "bolt_armor_trim_smithing_template";
     String FLOW_BANNER_PATTERN = "flow_banner_pattern";
     String GUSTER_BANNER_PATTERN = "guster_banner_pattern";
+    String BUNDLE = "bundle";
 }
diff --git a/src/main/java/cn/nukkit/item/ItemRuntimeID.java b/src/main/java/cn/nukkit/item/ItemRuntimeID.java
index abdf44d96d6..6ab1c429141 100644
--- a/src/main/java/cn/nukkit/item/ItemRuntimeID.java
+++ b/src/main/java/cn/nukkit/item/ItemRuntimeID.java
@@ -66,6 +66,7 @@ public interface ItemRuntimeID {
     int SCRAPE_POTTERY_SHERD = BASE_INTERNAL_ID + 56;
     int FLOW_ARMOR_TRIM_SMITHING_TEMPLATE = BASE_INTERNAL_ID + 57;
     int BOLT_ARMOR_TRIM_SMITHING_TEMPLATE = BASE_INTERNAL_ID + 58;
+    int BUNDLE = BASE_INTERNAL_ID + 59;
 
-    int CUSTOM_ITEM = Mth.smallestEncompassingPowerOfTwo(BASE_INTERNAL_ID + 59); //2048
+    int CUSTOM_ITEM = Mth.smallestEncompassingPowerOfTwo(BASE_INTERNAL_ID + 60); //2048
 }
diff --git a/src/main/java/cn/nukkit/item/Items.java b/src/main/java/cn/nukkit/item/Items.java
index cbe208cf8c3..5caa6259c53 100644
--- a/src/main/java/cn/nukkit/item/Items.java
+++ b/src/main/java/cn/nukkit/item/Items.java
@@ -425,6 +425,8 @@ public static void registerVanillaNewItems() {
         registerNewItem(ItemNames.FLOW_ARMOR_TRIM_SMITHING_TEMPLATE, FLOW_ARMOR_TRIM_SMITHING_TEMPLATE, ItemSmithingTemplateArmorTrimFlow.class, ItemSmithingTemplateArmorTrimFlow::new, V1_21_0);
         registerNewItem(ItemNames.BOLT_ARMOR_TRIM_SMITHING_TEMPLATE, BOLT_ARMOR_TRIM_SMITHING_TEMPLATE, ItemSmithingTemplateArmorTrimBolt.class, ItemSmithingTemplateArmorTrimBolt::new, V1_21_0);
 
+//        registerNewItem(ItemNames.BUNDLE, BUNDLE, ItemBundle.class, ItemBundle::new, );
+
     }
 
     @SuppressWarnings("deprecation")
diff --git a/src/main/java/cn/nukkit/level/Level.java b/src/main/java/cn/nukkit/level/Level.java
index ed4706a4527..6c45e8013c8 100644
--- a/src/main/java/cn/nukkit/level/Level.java
+++ b/src/main/java/cn/nukkit/level/Level.java
@@ -2728,7 +2728,7 @@ public Item useBreakOn(Vector3 vector, @Nullable BlockFace face, @Nullable Item
             Item[] eventDrops;
             if (!player.isSurvival()) {
                 eventDrops = new Item[0];
-            } else if (isSilkTouch && target.canSilkTouch()) {
+            } else if (isSilkTouch && target.canSilkTouch() && (target.canHarvestWithHand() || target.isToolCompatible(item))) {
                 eventDrops = new Item[]{target.getSilkTouchResource()};
             } else {
                 eventDrops = target.getDrops(item, player);
@@ -2757,7 +2757,7 @@ public Item useBreakOn(Vector3 vector, @Nullable BlockFace face, @Nullable Item
             dropExp = ev.getDropExp();
         } else if (!target.isBreakable(item)) {
             return null;
-        } else if (isSilkTouch && target.canSilkTouch()) {
+        } else if (isSilkTouch && target.canSilkTouch() && (target.canHarvestWithHand() || target.isToolCompatible(item))) {
             drops = new Item[]{target.getSilkTouchResource()};
         } else {
             drops = target.getDrops(item);