The perfect bondage product! The included adjustable cuffs (fits 4 inch to 12 inch wrists) attach to restraint straps that are secured to a single connector strap, which fits securely under your mattress and can be tucked away when not in use. The Under the Bed Restraint System lets you restrain your partners arms and legs from the sides or bottom of the bed, so you can easily fulfill your bondage fantasies. The restraint strap quickly fits beneath any mattress with no hooks, and adjusts to the size you desire. Its very simple to setup on any mattress, and completely portable for those surprise getaways.