Wrist cuffs are a band of metal, plastic, or fabric that cover the wrist and can be connected to another cuff or to a stationary object for the purpose of restricting movement.
More About Wrist Cuffs
Wrist cuffs are a popular restraint toy among BDSM practitioners. They can be made from many materials. They can be purchased or they can even be made by people with household objects. It'