Past and present use by Police and Security Guards world-wide, these S&W hand cuffs were the mainstay from the 1950's onward. We have two sets, one in blue and one in nickel with one key each. Both are carbon steel, 10 ounce weight and single lock system designated and so marked as Model 100. They appear as new but are unboxed. They are adjustable fit with chain link attachments. Proof of age over 21 required by picture ID drivers license copy sent to us with purchase request. Each pair are serialized and will be recorded as sold to ID holder.