We just got our first shipment of Rivolier handcuffs and leg irons from France. These are the restraints used by most law enforcement and corrections in France. Handcuffs are more oval shaped than other brands to better match the shape of the human wrist. They are constructed of aluminum bodies with steel swinging bows and chains. The product line includes high security handcuffs and leg irons that use standard keys plus a tumbler key to lock and unlock the double locks. Available at Handcuff Warehouse: Rivolier handcuffs.