4 totally adjustable and detachable wrist or ankle cuffs with VelcroB. style closures. 4 sturdy, adjustable tethers to fit most mattresses. May be used under any bed or as individual tethers. Universal clasps and O-rings with swivel design for full dexterity. Soft and plushy interior with a vegan leather exterior. Double padded, double stitched. Functional, durable and textured design.