Total Control Handcuffs model 812 hinged handcuffs have keyholes on both sides making cuffing and uncuffing in tactical situations faster and safer. The triple hinge design adds a great amount of strength to these handcuffs. TCH hinged handcuffs have a backloading feature that makes for a faster and more efficient preparation. These handcuffs double lock with a push pin on the side of the handcuff, like Peerless handcuffs. TCH uses nickel plating on their handcuffs for a professional and durable rust resistant finish. These handcuffs are double locking and come with two keys. NIJ Compliant. TCH Handcuffs are made in England. These handcuffs have profiled (rounded) edges to help prevent injury to the handcuffed subject. These hinged handcuffs come with 2 standard handcuff keys.