diff --git a/src/pocketmine/Server.php b/src/pocketmine/Server.php
index c95190130..0ae14b5e2 100644
--- a/src/pocketmine/Server.php
+++ b/src/pocketmine/Server.php
@@ -47,7 +47,6 @@ use pocketmine\event\Timings;
 use pocketmine\event\TimingsHandler;
 use pocketmine\event\TranslationContainer;
 use pocketmine\inventory\CraftingManager;
-use pocketmine\inventory\InventoryType;
 use pocketmine\inventory\Recipe;
 use pocketmine\item\enchantment\Enchantment;
 use pocketmine\item\Item;
@@ -1582,7 +1581,6 @@ class Server{
 
 			Entity::init();
 			Tile::init();
-			InventoryType::init();
 			Block::init();
 			Enchantment::init();
 			Item::init();
diff --git a/src/pocketmine/inventory/AnvilInventory.php b/src/pocketmine/inventory/AnvilInventory.php
index c679144ae..e27e3e540 100644
--- a/src/pocketmine/inventory/AnvilInventory.php
+++ b/src/pocketmine/inventory/AnvilInventory.php
@@ -24,11 +24,28 @@ declare(strict_types=1);
 namespace pocketmine\inventory;
 
 use pocketmine\level\Position;
+use pocketmine\network\mcpe\protocol\types\WindowTypes;
 use pocketmine\Player;
 
 class AnvilInventory extends ContainerInventory{
+
+	/** @var FakeBlockMenu */
+	protected $holder;
+
 	public function __construct(Position $pos){
-		parent::__construct(new FakeBlockMenu($this, $pos), InventoryType::get(InventoryType::ANVIL));
+		parent::__construct(new FakeBlockMenu($this, $pos));
+	}
+
+	public function getNetworkType() : int{
+		return WindowTypes::ANVIL;
+	}
+
+	public function getName() : string{
+		return "Anvil";
+	}
+
+	public function getDefaultSize() : int{
+		return 3; //1 input, 1 material, 1 result
 	}
 
 	/**
diff --git a/src/pocketmine/inventory/BaseInventory.php b/src/pocketmine/inventory/BaseInventory.php
index 0f8d8d84e..f3cca50d1 100644
--- a/src/pocketmine/inventory/BaseInventory.php
+++ b/src/pocketmine/inventory/BaseInventory.php
@@ -34,8 +34,6 @@ use pocketmine\Server;
 
 abstract class BaseInventory implements Inventory{
 
-	/** @var InventoryType */
-	protected $type;
 	/** @var int */
 	protected $maxStackSize = Inventory::MAX_STACK;
 	/** @var int */
@@ -53,37 +51,31 @@ abstract class BaseInventory implements Inventory{
 
 	/**
 	 * @param InventoryHolder $holder
-	 * @param InventoryType   $type
 	 * @param Item[]          $items
-	 * @param int             $overrideSize
-	 * @param string          $overrideTitle
+	 * @param int             $size
+	 * @param string          $title
 	 */
-	public function __construct(InventoryHolder $holder, InventoryType $type, array $items = [], $overrideSize = null, $overrideTitle = null){
+	public function __construct(InventoryHolder $holder, array $items = [], int $size = null, string $title = null){
 		$this->holder = $holder;
 
-		$this->type = $type;
-		if($overrideSize !== null){
-			$this->size = (int) $overrideSize;
-		}else{
-			$this->size = $this->type->getDefaultSize();
-		}
-
-		if($overrideTitle !== null){
-			$this->title = $overrideTitle;
-		}else{
-			$this->title = $this->type->getDefaultTitle();
-		}
-
-		$this->name = $this->type->getDefaultTitle();
+		$this->size = $size ?? $this->getDefaultSize();
+		$this->title = $title ?? $this->getName();
 
 		$this->setContents($items);
 	}
 
-	public function __destruct(){
-		$this->holder = null;
-		$this->slots = [];
+	abstract public function getName() : string;
+
+	public function getTitle() : string{
+		return $this->title;
 	}
 
+	/**
+	 * Returns the Minecraft PE inventory type used to show the inventory window to clients.
+	 * @return int
+	 */
+	abstract public function getNetworkType() : int;
+
 	public function getSize() : int{
 		return $this->size;
 	}
@@ -92,18 +84,12 @@ abstract class BaseInventory implements Inventory{
 		$this->size = $size;
 	}
 
+	abstract public function getDefaultSize() : int;
+
 	public function getMaxStackSize() : int{
 		return $this->maxStackSize;
 	}
 
-	public function getName() : string{
-		return $this->name;
-	}
-
-	public function getTitle() : string{
-		return $this->title;
-	}
-
 	public function getItem(int $index) : Item{
 		assert($index >= 0, "Inventory slot should not be negative");
 		return isset($this->slots[$index]) ? clone $this->slots[$index] : Item::get(Item::AIR, 0, 0);
@@ -456,9 +442,4 @@ abstract class BaseInventory implements Inventory{
 			$player->dataPacket($pk);
 		}
 	}
-
-	public function getType() : InventoryType{
-		return $this->type;
-	}
-
 }
diff --git a/src/pocketmine/inventory/ChestInventory.php b/src/pocketmine/inventory/ChestInventory.php
index 6f967a94e..283423b1c 100644
--- a/src/pocketmine/inventory/ChestInventory.php
+++ b/src/pocketmine/inventory/ChestInventory.php
@@ -26,12 +26,32 @@ namespace pocketmine\inventory;
 use pocketmine\level\Level;
 use pocketmine\network\mcpe\protocol\BlockEventPacket;
 use pocketmine\network\mcpe\protocol\LevelSoundEventPacket;
+use pocketmine\network\mcpe\protocol\types\WindowTypes;
 use pocketmine\Player;
 use pocketmine\tile\Chest;
 
 class ChestInventory extends ContainerInventory{
+
+	/** @var Chest */
+	protected $holder;
+
+	/**
+	 * @param Chest $tile
+	 */
 	public function __construct(Chest $tile){
-		parent::__construct($tile, InventoryType::get(InventoryType::CHEST));
+		parent::__construct($tile);
+	}
+
+	public function getNetworkType() : int{
+		return WindowTypes::CONTAINER;
+	}
+
+	public function getName() : string{
+		return "Chest";
+	}
+
+	public function getDefaultSize() : int{
+		return 27;
 	}
 
 	/**
diff --git a/src/pocketmine/inventory/ContainerInventory.php b/src/pocketmine/inventory/ContainerInventory.php
index e56e9f43e..d49a7d822 100644
--- a/src/pocketmine/inventory/ContainerInventory.php
+++ b/src/pocketmine/inventory/ContainerInventory.php
@@ -33,7 +33,7 @@ abstract class ContainerInventory extends BaseInventory{
 		parent::onOpen($who);
 		$pk = new ContainerOpenPacket();
 		$pk->windowid = $who->getWindowId($this);
-		$pk->type = $this->getType()->getNetworkType();
+		$pk->type = $this->getNetworkType();
 		$holder = $this->getHolder();
 		if($holder instanceof Vector3){
 			$pk->x = $holder->getX();
diff --git a/src/pocketmine/inventory/CraftingInventory.php b/src/pocketmine/inventory/CraftingInventory.php
deleted file mode 100644
index bab44132d..000000000
--- a/src/pocketmine/inventory/CraftingInventory.php
+++ /dev/null
@@ -1,62 +0,0 @@
-<?php
-
-/*
- *
- *  ____            _        _   __  __ _                  __  __ ____
- * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
- * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
- * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
- * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * @author PocketMine Team
- * @link http://www.pocketmine.net/
- *
- *
-*/
-
-declare(strict_types=1);
-
-namespace pocketmine\inventory;
-
-/**
- * Manages crafting operations
- * This class includes future methods for shaped crafting
- *
- * TODO: add small matrix inventory
- */
-class CraftingInventory extends BaseInventory{
-
-	/** @var Inventory */
-	private $resultInventory;
-
-	/**
-	 * @param InventoryHolder $holder
-	 * @param Inventory       $resultInventory
-	 * @param InventoryType   $inventoryType
-	 *
-	 * @throws \Exception
-	 */
-	public function __construct(InventoryHolder $holder, Inventory $resultInventory, InventoryType $inventoryType){
-		if($inventoryType->getDefaultTitle() !== "Crafting"){
-			throw new \InvalidStateException("Invalid Inventory type, expected CRAFTING or WORKBENCH");
-		}
-		$this->resultInventory = $resultInventory;
-		parent::__construct($holder, $inventoryType);
-	}
-
-	/**
-	 * @return Inventory
-	 */
-	public function getResultInventory(){
-		return $this->resultInventory;
-	}
-
-	public function getSize() : int{
-		return $this->getResultInventory()->getSize() + parent::getSize();
-	}
-}
\ No newline at end of file
diff --git a/src/pocketmine/inventory/DoubleChestInventory.php b/src/pocketmine/inventory/DoubleChestInventory.php
index 3b68ef889..142d6e3d0 100644
--- a/src/pocketmine/inventory/DoubleChestInventory.php
+++ b/src/pocketmine/inventory/DoubleChestInventory.php
@@ -39,7 +39,15 @@ class DoubleChestInventory extends ChestInventory implements InventoryHolder{
 		$this->left = $left->getRealInventory();
 		$this->right = $right->getRealInventory();
 		$items = array_merge($this->left->getContents(), $this->right->getContents());
-		BaseInventory::__construct($this, InventoryType::get(InventoryType::DOUBLE_CHEST), $items);
+		BaseInventory::__construct($this, $items);
+	}
+
+	public function getName() : string{
+		return "Double Chest";
+	}
+
+	public function getDefaultSize() : int{
+		return $this->left->getDefaultSize() + $this->right->getDefaultSize();
 	}
 
 	public function getInventory(){
diff --git a/src/pocketmine/inventory/EnchantInventory.php b/src/pocketmine/inventory/EnchantInventory.php
index 11d3fd154..38f6290b7 100644
--- a/src/pocketmine/inventory/EnchantInventory.php
+++ b/src/pocketmine/inventory/EnchantInventory.php
@@ -24,11 +24,28 @@ declare(strict_types=1);
 namespace pocketmine\inventory;
 
 use pocketmine\level\Position;
+use pocketmine\network\mcpe\protocol\types\WindowTypes;
 use pocketmine\Player;
 
 class EnchantInventory extends ContainerInventory{
+
+	/** @var FakeBlockMenu */
+	protected $holder;
+
 	public function __construct(Position $pos){
-		parent::__construct(new FakeBlockMenu($this, $pos), InventoryType::get(InventoryType::ENCHANT_TABLE));
+		parent::__construct(new FakeBlockMenu($this, $pos));
+	}
+
+	public function getNetworkType() : int{
+		return WindowTypes::ENCHANTMENT;
+	}
+
+	public function getName() : string{
+		return "Enchantment Table";
+	}
+
+	public function getDefaultSize() : int{
+		return 2; //1 input, 1 lapis
 	}
 
 	/**
diff --git a/src/pocketmine/inventory/FurnaceInventory.php b/src/pocketmine/inventory/FurnaceInventory.php
index efce4cea0..7d2a8bec3 100644
--- a/src/pocketmine/inventory/FurnaceInventory.php
+++ b/src/pocketmine/inventory/FurnaceInventory.php
@@ -24,11 +24,27 @@ declare(strict_types=1);
 namespace pocketmine\inventory;
 
 use pocketmine\item\Item;
+use pocketmine\network\mcpe\protocol\types\WindowTypes;
 use pocketmine\tile\Furnace;
 
 class FurnaceInventory extends ContainerInventory{
+	/** @var Furnace */
+	protected $holder;
+
 	public function __construct(Furnace $tile){
-		parent::__construct($tile, InventoryType::get(InventoryType::FURNACE));
+		parent::__construct($tile);
+	}
+
+	public function getNetworkType() : int{
+		return WindowTypes::FURNACE;
+	}
+
+	public function getName() : string{
+		return "Furnace";
+	}
+
+	public function getDefaultSize() : int{
+		return 3; //1 input, 1 fuel, 1 output
 	}
 
 	/**
diff --git a/src/pocketmine/inventory/Inventory.php b/src/pocketmine/inventory/Inventory.php
index 2c81c4486..1dfcbb784 100644
--- a/src/pocketmine/inventory/Inventory.php
+++ b/src/pocketmine/inventory/Inventory.php
@@ -193,11 +193,6 @@ interface Inventory{
 	 */
 	public function getViewers() : array;
 
-	/**
-	 * @return InventoryType
-	 */
-	public function getType() : InventoryType;
-
 	/**
 	 * @return InventoryHolder
 	 */
diff --git a/src/pocketmine/inventory/InventoryType.php b/src/pocketmine/inventory/InventoryType.php
deleted file mode 100644
index 7df5e0c14..000000000
--- a/src/pocketmine/inventory/InventoryType.php
+++ /dev/null
@@ -1,111 +0,0 @@
-<?php
-
-/*
- *
- *  ____            _        _   __  __ _                  __  __ ____
- * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
- * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
- * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
- * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * @author PocketMine Team
- * @link http://www.pocketmine.net/
- *
- *
-*/
-
-declare(strict_types=1);
-
-namespace pocketmine\inventory;
-
-use pocketmine\network\mcpe\protocol\types\WindowTypes;
-
-/**
- * Saves all the information regarding default inventory sizes and types
- */
-class InventoryType{
-
-	//NOTE: Do not confuse these with the network IDs.
-	const CHEST = 0;
-	const DOUBLE_CHEST = 1;
-	const PLAYER = 2;
-	const FURNACE = 3;
-	const CRAFTING = 4;
-	const WORKBENCH = 5;
-	const STONECUTTER = 6;
-	const BREWING_STAND = 7;
-	const ANVIL = 8;
-	const ENCHANT_TABLE = 9;
-
-	private static $default = [];
-
-	private $size;
-	private $title;
-	private $typeId;
-
-	/**
-	 * @param $index
-	 *
-	 * @return InventoryType|null
-	 */
-	public static function get($index){
-		return static::$default[$index] ?? null;
-	}
-
-	public static function init(){
-		if(count(static::$default) > 0){
-			return;
-		}
-
-		//TODO: move network stuff out of here
-		//TODO: move inventory data to json
-		static::$default = [
-			static::CHEST =>         new InventoryType(27, "Chest", WindowTypes::CONTAINER),
-			static::DOUBLE_CHEST =>  new InventoryType(27 + 27, "Double Chest", WindowTypes::CONTAINER),
-			static::PLAYER =>        new InventoryType(36 + 4, "Player", WindowTypes::INVENTORY), //36 CONTAINER, 4 ARMOR
-			static::CRAFTING =>      new InventoryType(5, "Crafting", WindowTypes::INVENTORY), //yes, the use of INVENTORY is intended! 4 CRAFTING slots, 1 RESULT
-			static::WORKBENCH =>     new InventoryType(10, "Crafting", WindowTypes::WORKBENCH), //9 CRAFTING slots, 1 RESULT
-			static::FURNACE =>       new InventoryType(3, "Furnace", WindowTypes::FURNACE), //2 INPUT, 1 OUTPUT
-			static::ENCHANT_TABLE => new InventoryType(2, "Enchant", WindowTypes::ENCHANTMENT), //1 INPUT/OUTPUT, 1 LAPIS
-			static::BREWING_STAND => new InventoryType(4, "Brewing", WindowTypes::BREWING_STAND), //1 INPUT, 3 POTION
-			static::ANVIL =>         new InventoryType(3, "Anvil", WindowTypes::ANVIL) //2 INPUT, 1 OUTP
-		];
-	}
-
-	/**
-	 * @param int    $defaultSize
-	 * @param string $defaultTitle
-	 * @param int    $typeId
-	 */
-	private function __construct($defaultSize, $defaultTitle, $typeId = 0){
-		$this->size = $defaultSize;
-		$this->title = $defaultTitle;
-		$this->typeId = $typeId;
-	}
-
-	/**
-	 * @return int
-	 */
-	public function getDefaultSize() : int{
-		return $this->size;
-	}
-
-	/**
-	 * @return string
-	 */
-	public function getDefaultTitle() : string{
-		return $this->title;
-	}
-
-	/**
-	 * @return int
-	 */
-	public function getNetworkType() : int{
-		return $this->typeId;
-	}
-}
\ No newline at end of file
diff --git a/src/pocketmine/inventory/PlayerInventory.php b/src/pocketmine/inventory/PlayerInventory.php
index f637b60e7..b02567ea7 100644
--- a/src/pocketmine/inventory/PlayerInventory.php
+++ b/src/pocketmine/inventory/PlayerInventory.php
@@ -34,6 +34,7 @@ use pocketmine\network\mcpe\protocol\MobArmorEquipmentPacket;
 use pocketmine\network\mcpe\protocol\MobEquipmentPacket;
 use pocketmine\network\mcpe\protocol\PlayerHotbarPacket;
 use pocketmine\network\mcpe\protocol\types\ContainerIds;
+use pocketmine\network\mcpe\protocol\types\WindowTypes;
 use pocketmine\Player;
 use pocketmine\Server;
 
@@ -45,7 +46,19 @@ class PlayerInventory extends BaseInventory{
 
 	public function __construct(Human $player){
 		$this->resetHotbar(false);
-		parent::__construct($player, InventoryType::get(InventoryType::PLAYER));
+		parent::__construct($player);
+	}
+
+	public function getNetworkType() : int{
+		return WindowTypes::INVENTORY;
+	}
+
+	public function getName() : string{
+		return "Player";
+	}
+
+	public function getDefaultSize() : int{
+		return 40; //36 inventory, 4 armor
 	}
 
 	public function getSize() : int{
diff --git a/src/pocketmine/inventory/SlotType.php b/src/pocketmine/inventory/SlotType.php
deleted file mode 100644
index 65ab00732..000000000
--- a/src/pocketmine/inventory/SlotType.php
+++ /dev/null
@@ -1,41 +0,0 @@
-<?php
-
-/*
- *
- *  ____            _        _   __  __ _                  __  __ ____
- * |  _ \ ___   ___| | _____| |_|  \/  (_)_ __   ___      |  \/  |  _ \
- * | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
- * |  __/ (_) | (__|   <  __/ |_| |  | | | | | |  __/_____| |  | |  __/
- * |_|   \___/ \___|_|\_\___|\__|_|  |_|_|_| |_|\___|     |_|  |_|_|
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * @author PocketMine Team
- * @link http://www.pocketmine.net/
- *
- *
-*/
-
-declare(strict_types=1);
-
-namespace pocketmine\inventory;
-
-/**
- * Saves all the information regarding default inventory sizes and types
- */
-interface SlotType{
-	const RESULT = 0;
-
-	const CRAFTING = 1; //Not used in Minecraft: PE yet
-
-	const ARMOR = 2;
-
-	const CONTAINER = 3;
-
-	const HOTBAR = 4;
-
-	const FUEL = 5;
-}
\ No newline at end of file