Product Number: ET375BLK Make your bondage game even more exciting with this bed restraint system. Because of the adjustable straps, the system fits on any matress. Put the straps underneath your matress and let the cuffs hang out at the sides. Then let your partner lie on the bed and tie his or her hands and ankles with the cuffs. Escape is impossible! All four cuffs are adjustable for a perfect fit. They are made of sturdy and durable faux leather and are lined with foam for a comfortable use.