Thank you for viewing. This is a BOX coin case made by incorporating a previously owned Artemis Classic concho, designed for practicality. The coin case itself is a commercially available item. Please consider this as a handmade or remade item. On the back, there's a free pocket where folded bills can barely peek out. There's also a free pocket in front of the flap and BOX, large enough to hold bills folded in quarters. Ideally, an IC card can be stored on the back, and folded bills can be stored in the free pocket for emergencies. ★Size (approximate measurements) 9 x 8 x 1.5 cm ★Color: Black ※Of course, bills are not included with the product, so please be aware of that.