Bondage Mitt Handcuffs These mitts lock via an Allen type lock. For additional security there are also holes for using an optional bolt or padlock (not included).The mitts have built-in hooks for .. your imagination. These are new and include one key. These handcrafted item is made of Stainless Steel. It's heavy but comfortable, and a very unique addition to your collection. These replica antique items are sold as a novelty item, not intended for police use.