When ordering items with personalization the quantity button is locked at 1 so that the site can capture your personalization instructions for each item as you add it to your cart.

If you want to order your items blank with no personalization, you can check that box and the quantity button will allow you to order as many as you want (and the personalization box will be locked).

If you want to order more than one with the EXACT same personalization, you can check that box and the quantity button will let you order as many as you want.