diff --git a/src/main/kotlin/pw.hamzantal.shopreborn/ClickListeners.kt b/src/main/kotlin/pw.hamzantal.shopreborn/ClickListeners.kt
index 2620d7e..14a1f0b 100644
--- a/src/main/kotlin/pw.hamzantal.shopreborn/ClickListeners.kt
+++ b/src/main/kotlin/pw.hamzantal.shopreborn/ClickListeners.kt
@@ -237,7 +237,7 @@ fun clickInventory(e: InventoryClickEvent, pe: PurchaseEvent) {
 
 fun executeSell(item: ItemStack, howMany: Int, singleCost: Double, p: Player, op: OfflinePlayer) {
     val name = if (item.itemMeta.hasDisplayName()) item.itemMeta.displayName else item.type.prettyName()
-    if (howMany <= 0) {
+    if (howMany <= 0 || p containing item < howMany) {
         p.msg(GlobalConfig.messages.sellNotEnough.replace("%NAME%", name))
         return
     }
diff --git a/src/main/kotlin/pw.hamzantal.shopreborn/PurchaseItems.kt b/src/main/kotlin/pw.hamzantal.shopreborn/PurchaseItems.kt
index 8e4d5ed..61d7538 100644
--- a/src/main/kotlin/pw.hamzantal.shopreborn/PurchaseItems.kt
+++ b/src/main/kotlin/pw.hamzantal.shopreborn/PurchaseItems.kt
@@ -4,16 +4,16 @@ import org.bukkit.Material
 import org.bukkit.inventory.ItemStack
 
 object PurchaseItems {
-    fun paneStack(damage: Int, name: String): ItemStack {
-        return ItemStack(Material.STAINED_GLASS_PANE, 1, damage.toShort()).apply {
+    fun paneStack(damage: Int, name: String, amount: Int = 1): ItemStack {
+        return ItemStack(Material.STAINED_GLASS, amount, damage.toShort()).apply {
             itemMeta = itemMeta.apply {
                 displayName = name.c
             }
         }
     }
 
-    fun blockStack(damage: Int, name: String): ItemStack {
-        return ItemStack(Material.STAINED_GLASS, 1, damage.toShort()).apply {
+    fun blockStack(damage: Int, name: String, amount: Int = 1): ItemStack {
+        return ItemStack(Material.STAINED_GLASS, amount, damage.toShort()).apply {
             itemMeta = itemMeta.apply {
                 displayName = name.c
             }
@@ -27,12 +27,12 @@ object PurchaseItems {
 
     var msgs = GlobalConfig.messages
     val set1 = paneStack(14, msgs.set1)
-    val sub10 = paneStack(14, msgs.sub10)
-    val sub1 = paneStack(14, msgs.sub1)
+    val sub10 = paneStack(14, msgs.sub10, 10)
+    val sub1 = paneStack(14, msgs.sub1, 1)
 
-    val add1 = paneStack(5, msgs.add1)
-    val add10 = paneStack(5, msgs.add10)
-    val set64 = paneStack(5, msgs.set64)
+    val add1 = paneStack(5, msgs.add1, 1)
+    val add10 = paneStack(5, msgs.add10, 10)
+    val set64 = paneStack(5, msgs.set64, 64)
 
     val sellConfirm = blockStack(5, msgs.sellConfirm)
     val sellAll = blockStack(5, msgs.sellAll)