Smith & Wesson handcuffs are fabricated from the finest quality carbon or stainless steel. They are made with heat treated internal lockworks, featuring smooth ratchets for swift cuffing and double locks to prevent tampering. Smith & Wesson handcuffs meet or exceed demanding U.S. National Institute of Justice tests for workmanship, strength, corrosion and tamper resistance. From the police and correctional favorite Model 100 series handcuffs to the invariable durability of our restraint chains and leg irons- Smith & Wesson is a proven worldwide leader in police handcuff and restraint production. Smith & Wesson handcuffs and leg irons are made in the U.S.