The Peerless chain link handcuff has a new design! The Model 700 now incorporates spun rivet construction for increased security and durability. Smooth single strand action allows for fast and efficient cuffing. The profiled edges minimize the risk of tissue and nerve injury. The Model 700 has been approved by the Nation Institute of Justice. It comes with a lifetime warranty for manufacture defects. Two keys included. 10 oz. 5.9"-8.3" inside perimeters.