POLICE Double locked heavy duty metal steel professional law enforcement handcuffs in Black. Engineered to meet the demands of Police, Military, and Security Professionals worldwide but also available to civilians. SUPER DURABLE: Our police metal handcuffs are made of high quality nickel plated solid steel for extra durability and reinforcement. DOUBLE LOCK: Allows you to choose the position the handcuffs stay in, so they will not move in either direction. Protect the user's hand! TWO KEYS INCLUDED: Our black handcuffs comes with 2 keys so never have to worry about misplacing your key because you have a spare. LIFETIME WARRANTY: Police steel handcuffs are made of the highest quality components and comes with a lifetime warranty.