Generously sized ramp with a 10-to-14-inch rise, easing pressure on joints and lower back across missionary, from-behind, cowgirl, and more. High-density foam core adds traction on memory-foam mattresses. Available in three sizes. Soft microfiber cover over a poly/nylon liner, machine washable, patented interlocking threads to prevent slipping. Ships vacuum-compressed. Support at exactly the right angle.