This order will come with 2 of these carrying cases for a great price. You won't be able to find it cheaper anywhere else. The size of the exterior is 12"x8.5"x3". These came from a kit that holds Bosch 12V tools such as the PS21, PS31 and PS41. We have a ton of these in stock. If you'd like a different amount than 4 of these then please let me know and we can work something out. We also have another listing for this item as a 4 set in our store.