I tried attaching my own keys to it once, but they didn't fit, so I'm putting it up for sale. A trifold key case made with high-quality leather. It uses high-quality leather that develops character with use, and the large button and Il Bisonte engraving are accents. Even if you attach a lot of keys, it can be stored securely with the snap button, so it looks neat. Hooks x 4 *Please be aware that if it gets wet with water such as sweat or rain, the color may transfer to clothing or other items. *Il Bisonte products use natural leather, so there are individual differences in the texture and color of each item. Even after purchase, individual differences in aging will appear depending on the usage, frequency of use, environment, and climate. [Actual Size] FREE: Size 9.5 x 4.5 Thickness 2.5