NS Novelties Restraint Belt S/M. Add a spark of excitement to your play time. The Sinful Restraint Belt features both center and side mounted D-rings. Compatible with Sinful Wrist and Ankle Cuffs (sold separately). Designed for optimum functionality and comfort. Made of vinyl and nickel-free hardware. The restraint belt is the perfect accessory to keep you partner in their place. Each belt features 3 D-rings so you can attach your lovers wrist cuffs to the belt. It's your choice to keep their hands in front or at the back. Yes, you make all the decisions. Made of easy to clean vinyl and sporting all black nickel-free hardware.