This case holds exactly 10 Game Boy Advance cartridges by inserting them into the grooves on the bottom. You can easily remove the cartridges by pushing them out from the holes at the bottom of the case. Assembly instructions are shown in images 3-4. Material: Blue PLA * The product will be shipped disassembled as shown in the second image. * Game cartridges are not included. [Discounts for Multiple Purchases] * When purchasing multiple items, small items can be shipped together in the same envelope, allowing for a discount of 175 yen per item. Discounts are also available when purchasing this item with other small items. If you would like to purchase multiple items, please leave a comment, and I will adjust the price of the page to reflect the discount.