Hailing from Sir Richard's Command line of heavy-duty BDSM gear, the Command Cuff & Collar Set includes a collar and matching cuffs, an O-ring, and three carabiners. Using the O-ring and carabiners, the cuffs and collar can be attached to one another, or to other bondage systems easily and securely. The pieces of the set are constructed using incredibly durable professional grade nylon webbing and stainless steel hardware, including slip proof V-rings.