A wallet is a small, flat case that can be used to carry such small personal items as paper currency, credit cards, and identification documents (driver's license, identification card, club card, etc.), photographs, transit pass, business cards and other paper or laminated cards. Wallets are generally made of leather or fabrics, and they are usually pocket-sized and foldable. Wallets may have characteristics such as money clips; a coin purse; a chain fastener, strap, or rein; or a zipper. Specialized wallets are designed for holding passports, wearable ID cards, and checkbooks to give some examples. Some unusual wallets are worn on the wrist or shoe. In addition to their practical function, wallets may be used as a fashion accessory, or to demonstrate the style, wealth, or status of the owner.