Master Series Interlace Bed Restraint SetThe kit contains eight contact points which can be sure to fit any sized mattress. The four removable ankle and wrist cuffs are made of neoprene to ensure their comfort, and yet still be restrained to your liking. Each cuff is adjustable to fit most and made with Velcro to ensure a quick release. Note: For optimal function Queen mattress, or larger, is recommended Features: Multi position versatility 8 contact points to hook up to Removeable ankle &