This is a card case made from Roroma leather. The interior leather uses Tochigi Leather's saddle leather. The size is approximately 10.5 x 7cm when closed. It is approximately 14.5 x 10.5cm when open. There may be differences between the actual color and the color displayed on your smartphone, etc. This is vegetable-tanned, undyed nubuck leather. It is nubuck leather, vegetable-tanned like Tochigi Leather, and is durable and develops character the more you use it. It is handmade and hand-stitched. You can enjoy the gradual aging process, as the depth of flavor increases with use. Please also enjoy the feel of the leather. Since natural materials are used, there may be color unevenness, scratches, and wrinkles. Thank you for your understanding of handmade products. Because the leather is thick, it won't close unless you hold it closed with your hand, but it should close as it becomes familiar and softens. Roroma leather is a wax leather made by a tanner based in Himeji, Japan, who tans domestic cowhide (steerhide) with vegetable tannins and soaks it in natural wax. It is named for its beauty, which shines like a jewel the more it is polished.