diff --git a/core/src/main/java/mc/core/block/AbstractBlock.java b/core/src/main/java/mc/core/block/AbstractBlock.java
new file mode 100644
index 0000000..7b17761
--- /dev/null
+++ b/core/src/main/java/mc/core/block/AbstractBlock.java
@@ -0,0 +1,23 @@
+package mc.core.block;
+
+import lombok.Getter;
+import lombok.Setter;
+import mc.core.Location;
+
+public abstract class AbstractBlock implements Block {
+    @Getter@Setter
+    private Location location;
+    @Getter@Setter
+    private int meta;
+    @Getter
+    private final BlockType blockType;
+
+    protected AbstractBlock(BlockType type) {
+        this.blockType = type;
+    }
+
+    @Override
+    public int getId() {
+        return blockType.getId();
+    }
+}
diff --git a/core/src/main/java/mc/core/block/Block.java b/core/src/main/java/mc/core/block/Block.java
new file mode 100644
index 0000000..a34f328
--- /dev/null
+++ b/core/src/main/java/mc/core/block/Block.java
@@ -0,0 +1,46 @@
+package mc.core.block;
+
+import mc.core.Location;
+
+/**
+ * Serialize info about block
+ *
+ * +------------+--------+------------+
+ * | param      | range  | bits       |
+ * +------------+--------+------------+
+ * | id         | 0-255  | 8          |
+ * +------------+--------+------------+
+ * | meta       | 0-15   | 4          |
+ * +------------+--------+------------+
+ * | x          | 0-15   | 4          |
+ * +------------+--------+------------+
+ * | y          | 0-15   | 4          |
+ * +------------+--------+------------+
+ * | z          | 0-15   | 4          |
+ * +------------+--------+------------+
+ *
+ * Total: 24 bits per block (3 bytes)
+ *
+ */
+
+public interface Block {
+
+    /** Block id */
+    int getId();
+
+    /**
+     * Addition in 0-15
+     * F.e. 35:0 - white wool
+     * 35:15 - black wool
+     */
+    int getMeta();
+
+    /**
+     * Getting block type
+     */
+    BlockType getBlockType();
+
+    /** Block location */
+    Location getLocation();
+
+}
diff --git a/core/src/main/java/mc/core/block/BlockType.java b/core/src/main/java/mc/core/block/BlockType.java
new file mode 100644
index 0000000..cf6cc1a
--- /dev/null
+++ b/core/src/main/java/mc/core/block/BlockType.java
@@ -0,0 +1,20 @@
+package mc.core.block;
+
+import lombok.Getter;
+
+public enum BlockType {
+    DIRT(1, "Dirt"),
+    GRASS(2, "Grass"),
+    BEDROCK(7, "Bedrock");
+
+    @Getter
+    private final int id;
+    @Getter
+    private final String name;
+
+    BlockType(int id, String name) {
+        this.id = id;
+        this.name = name;
+    }
+
+}
diff --git a/core/src/main/java/mc/core/world/WorldType.java b/core/src/main/java/mc/core/world/WorldType.java
index 59b42a4..73533fa 100644
--- a/core/src/main/java/mc/core/world/WorldType.java
+++ b/core/src/main/java/mc/core/world/WorldType.java
@@ -1,7 +1,7 @@
 package mc.core.world;
 
 public enum WorldType implements IWorldType {
-    GENERAl ("Standard world type"),
+    GENERAL("Standard world type"),
     NETHER ("Nether world type"),
     END ("End world type");
 
diff --git a/flat_world/src/main/java/mc/world/flat/FlatWorld.java b/flat_world/src/main/java/mc/world/flat/FlatWorld.java
index 7595550..d12b034 100644
--- a/flat_world/src/main/java/mc/world/flat/FlatWorld.java
+++ b/flat_world/src/main/java/mc/world/flat/FlatWorld.java
@@ -26,7 +26,7 @@ public class FlatWorld implements World {
 
     @Override
     public IWorldType getWorldType() {
-        return WorldType.GENERAl;
+        return WorldType.GENERAL;
     }
 
     @Override