The perfect bondage product! Includes 4 adjustable cuffs (fits 4 inches to 12-inch wrists) 4 restraint straps secured to one connector strap that fits securely under your mattress. Restrains your partner’s arms and legs from the sides or bottom of the bed. The restraint strap quickly fits beneath any mattress with no hooks and adjusts to the size you desire. Easy setup on any mattress. Portable and great for a surprise getaway.