This is a silk (正絹) accordion card case. It's a card case made by repurposing a navy blue fabric with white stripes. The front and back use the same fabric. It can hold 17 cards, and 34 cards if you put two cards in each slot. The outer fabric has interfacing, and there's Velcro on the opening. It's made with care, but it's a handmade item by an amateur, so there may be some imperfections like warping or wrinkles. Thank you for your understanding. Size: Height: Approximately 9.7 cm Width: Approximately 14.6 cm #AccordionCardCase #CardCase #Handmade