Streetwise Security Products Police Force Stainless Steel Handcuffs Design: Double locking to help prevent tampering Durable: heavy duty solid stainless steel for maximum durability and reinforcement Lifetime Warranty: the POLICE force stainless steel handcuffs are made in taiwan using the highest quality components and come with a Lifetime Warranty; see instructions for complete details Locking feature: pushpin to lock cuffs in place and prevent over tightening Two keys: never worry about misplacing your key because you have a spare