Bind your sub up by the wrists, collar and ankles with this unisex restraint set. All restraints come with adjustable metal buckle fastenings. The neck cuff has a circumference of up to 18.5 inches, the wrist restraints up to 10.5 inches and the ankle cuffs up to 12.5 inches. All restraints are attached to a sturdy metal chain. The chain measures 34 inches from hands to feet and 16 inches from neck to hands. The ankle and wrist cuffs have D-rings that are linked to a 1.75 inch diameter metal ring.