Trading card travel box

I created this trading card travel box for my kids that use it to trade cards in school. Normal trading cards like Pokemon or soccer cards fit. Cards with protective sheet will also fit. The box will protect the cards and is so small that it fits in trouser or jacket pocket.

The box is closed with a lid out of the same material.

Total size ~ 110x70 mm (4.3 x 2.75 inch)