diff --git a/pom.xml b/pom.xml
index ac25df6..659366b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -3,7 +3,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>org.maxgamer</groupId>
 	<artifactId>QuickShop</artifactId>
-	<version>1.4.3</version>
+	<version>1.4.4</version>
 	<build>
 		<finalName>${project.name}</finalName>
 		<resources>
diff --git a/src/main/java/org/maxgamer/QuickShop/Listeners/PlayerListener.java b/src/main/java/org/maxgamer/QuickShop/Listeners/PlayerListener.java
index 3a4f554..226d3d2 100644
--- a/src/main/java/org/maxgamer/QuickShop/Listeners/PlayerListener.java
+++ b/src/main/java/org/maxgamer/QuickShop/Listeners/PlayerListener.java
@@ -17,6 +17,7 @@ import org.bukkit.event.player.PlayerJoinEvent;
 import org.bukkit.event.player.PlayerMoveEvent;
 import org.bukkit.event.player.PlayerQuitEvent;
 import org.bukkit.event.player.PlayerTeleportEvent;
+import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.ItemStack;
 import org.bukkit.util.BlockIterator;
 import org.maxgamer.QuickShop.QuickShop;
@@ -62,6 +63,11 @@ public class PlayerListener implements Listener {
 			shop.onClick();
 			// Text menu
 			MsgUtil.sendShopInfo(p, shop);
+			if (!plugin.getConfigManager().isEnableMagicLib() && !shop.getOwner().equalsIgnoreCase(p.getName()) && b.getType() == Material.WALL_SIGN) {
+				final Inventory in = Bukkit.createInventory(null, 9, plugin.getConfigManager().getGuiTitle());
+				in.setItem(4, shop.getItem());
+				p.openInventory(in);
+			}
 			if (shop.isSelling()) {
 				p.sendMessage(MsgUtil.p("how-many-buy"));
 			} else {
diff --git a/src/main/java/org/maxgamer/QuickShop/Listeners/ProtectListener.java b/src/main/java/org/maxgamer/QuickShop/Listeners/ProtectListener.java
index 7684ca8..d32ec8a 100644
--- a/src/main/java/org/maxgamer/QuickShop/Listeners/ProtectListener.java
+++ b/src/main/java/org/maxgamer/QuickShop/Listeners/ProtectListener.java
@@ -2,11 +2,12 @@ package org.maxgamer.QuickShop.Listeners;
 
 import org.bukkit.Bukkit;
 import org.bukkit.Material;
+import org.bukkit.block.Block;
+import org.bukkit.block.BlockState;
+import org.bukkit.block.DoubleChest;
 import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
-import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
-import org.bukkit.event.entity.ItemDespawnEvent;
 import org.bukkit.event.inventory.InventoryClickEvent;
 import org.bukkit.event.inventory.InventoryMoveItemEvent;
 import org.bukkit.event.inventory.InventoryPickupItemEvent;
@@ -14,8 +15,10 @@ import org.bukkit.event.inventory.InventoryType;
 import org.bukkit.event.player.PlayerItemHeldEvent;
 import org.bukkit.event.player.PlayerPickupItemEvent;
 import org.bukkit.inventory.Inventory;
+import org.bukkit.inventory.InventoryHolder;
 import org.bukkit.inventory.ItemStack;
 import org.maxgamer.QuickShop.QuickShop;
+import org.maxgamer.QuickShop.Shop.Shop;
 import org.maxgamer.QuickShop.Util.MarkUtil;
 
 public class ProtectListener implements Listener {
@@ -26,18 +29,41 @@ public class ProtectListener implements Listener {
 		this.plugin = plugin;
 	}
 
+	public Shop getShop(final Inventory inv) {
+		if (inv == null) {
+			return null;
+		}
+		InventoryHolder holder = inv.getHolder();
+		if (holder instanceof DoubleChest) {
+			holder = ((DoubleChest) holder).getLeftSide();
+		}
+
+		if (holder instanceof BlockState) {
+			final Block block = ((BlockState) holder).getBlock();
+			final Shop sp = plugin.getShopManager().getShop(block.getLocation());
+			if (sp != null) {
+				return sp;
+			}
+		}
+		return null;
+	}
+
 	@EventHandler
 	public void onInvMove(final InventoryMoveItemEvent e) {
 		final ItemStack ci = e.getItem();
 		if (MarkUtil.hasMark(ci)) {
 			e.setCancelled(true);
-			final ItemStack[] items = e.getSource().getContents();
-			for (final ItemStack itemStack : items) {
-				if (MarkUtil.hasMark(itemStack)) {
-					itemStack.setType(Material.AIR);
-				}
-			}
-			e.getSource().setContents(items);
+		}
+
+		final Inventory src = e.getSource();
+		final Inventory me = e.getInitiator();
+		final Inventory des = e.getDestination();
+		final Shop srcshop = getShop(src);
+		final Shop meshop = getShop(me);
+		final Shop desshop = getShop(des);
+
+		if ((srcshop != null && meshop == null) || (meshop != null && desshop == null) || (srcshop != null && desshop != null && srcshop.getOwner().equalsIgnoreCase(desshop.getOwner()))) {
+			e.setCancelled(true);
 		}
 	}
 
@@ -75,14 +101,6 @@ public class ProtectListener implements Listener {
 		}
 	}
 
-	@EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
-	public void onItemDespawn(final ItemDespawnEvent e) {
-		final ItemStack ci = e.getEntity().getItemStack();
-		if (MarkUtil.hasMark(ci)) {
-			e.setCancelled(true);
-		}
-	}
-
 	@EventHandler
 	public void onPlayerHandlerItem(final PlayerItemHeldEvent e) {
 		final Player p = e.getPlayer();
diff --git a/src/main/java/org/maxgamer/QuickShop/Util/MsgUtil.java b/src/main/java/org/maxgamer/QuickShop/Util/MsgUtil.java
index 592c8d9..38aa9cf 100644
--- a/src/main/java/org/maxgamer/QuickShop/Util/MsgUtil.java
+++ b/src/main/java/org/maxgamer/QuickShop/Util/MsgUtil.java
@@ -9,7 +9,6 @@ import org.bukkit.Bukkit;
 import org.bukkit.ChatColor;
 import org.bukkit.OfflinePlayer;
 import org.bukkit.entity.Player;
-import org.bukkit.inventory.Inventory;
 import org.bukkit.inventory.ItemStack;
 import org.maxgamer.QuickShop.QuickShop;
 import org.maxgamer.QuickShop.Shop.Shop;
@@ -193,10 +192,5 @@ public class MsgUtil {
 			p.sendMessage(ChatColor.DARK_PURPLE + "| " + MsgUtil.p("menu.this-shop-is-selling"));
 		}
 		p.sendMessage(ChatColor.DARK_PURPLE + "+---------------------------------------------------+");
-		if (!plugin.getConfigManager().isEnableMagicLib() && !shop.getOwner().equalsIgnoreCase(p.getName())) {
-			final Inventory in = Bukkit.createInventory(null, 9, plugin.getConfigManager().getGuiTitle());
-			in.setItem(4, items);
-			p.openInventory(in);
-		}
 	}
 }
\ No newline at end of file