The card is stored on both sides, with a transparent open window pocket on one side and a leather pocket on the other. Vegetable tanned leather is hand-dyed. ◆ Product size: 10.5 x 7.3cm (note the manual production and measurement error) ◆ Product material: leather ◆ Origin / production methods: Taiwan Tainan / handmade [instruction manual] - Product production time is approximately 10-20 working days (excluding holidays) - The photo is taken as a physical picture. Because of the color difference between the color of the screen and the light, it is mainly based on the entity. - The color of the dyeing is not the same for hand-made, and it is also affected by the natural color difference of the cowhide itself. Please accept the difference and place an order again. - The products are handmade, each piece will be slightly different, and it will be unique. - Natural leather will have growth marks, scars, chromatic aberrations, spots, etc., all of which are natural phenomena, not sputum. [Use and maintenance] - Vegetable tanned leather will gradually darken and trace the age according to the way each person uses it and the sun. - If the leather is accidentally wet, please dry it and let it dry in a cool place. Do not use the blower to break the leather. - If you accidentally scratch it, use maintenance oil and gently wipe it on the surface.