This convenient key holder will become more attractive as you use it. The leather parts increase the color luster the more you use it, and the brass will produce a distinctive taste with a deeper color. It also comes with a versatile hook that makes it useful for anything. There are 3 key rings. Size (W x H x D): 1.3 x 4.5 x 0.8 inches (3.3 x 11.3 x 2 cm); Weight: 1.1 oz (32 g); Material: Cowhide Leather, Brass; Note: Made in Japan, Handmade, Precautions: The leather texture and subtle color may vary from the edge of the leather, so please be aware of this before purchasing.