ASP 46103 Double pawl high security aluminum lightweight chain handcuffs that use a special key. "The two pawl lock set provides increased security through a tamper-proof design. A stainless steel divider plate makes it impossible to pick the lock of an ASP cuff that incorporates this lock set." The special 2 pawl double bit key will unlock all standard handcuffs. Standard handcuff keys will not unlock the two pawl lock set. Can be identified by the blue double locks. Includes 1 two pawl handcuff key. Note: sales of replacement keys are restricted.