HNRX Under Bed RestraintsTie your submissive to the bed with these Under Bed Restraints. Perfect for every sized bed, from single to king, you'll find the perfect way to use this piece of kit. The high quality under bed restraint system is made from heavy duty nylon straps that fit discreetly under your mattress. The kit contains four soft cuffs for wrists and ankles, all with fully adjustable straps to fit every user. Bondage fans and kinky lovers will fall in love and use