Naughty Toys adjustable four backhand arm and wrists restraint cuffs with neck collar and a mouth gag. Perhaps the most one-piece complete bondage restraint system ever. This restraint Bondage system is a combination of (4) four Backhand, arms and wrists cuffs (see photos) combined with neck collar and a silicone mouth gag. Collar, wrists and ankle cuffs are made with nylon velcro and they can instantly adjusted. Cuffs are connected with metal snap hooks and chains The materials used are soft and skin friendly