Heavy duty stainless steel neck and wrist bondage set. The collar and cuffs all connect by a spreader bar and connecting links. All the parts are detachable and can be used separately. The cuffs and collar are locked by an integrated flush mount screw. Collar inside diameter is 5.5 in. Cuff inside diameter is 2.33 in. The spreader bar length 14.25 in. The set is packaged in an attractive box with magnetic closure and foam core insert. Weight is 4.6 lb.