I'm YUKIYA. Thank you for looking. These small items are made using Tochigi leather cowhide and are hand-stitched one by one. The edges have also been polished repeatedly and carefully finished. Size 6.5cm (vertical) 10.5cm (horizontal) Holds up to 6 cards Material Tochigi Leather 1.5mm Color Black I made these as a hobby. I'd be happy if you like them. Please note that the color may differ slightly from the actual product depending on the viewing environment.