Generously sized ramp delivering a 10-to-14-inch rise on any flat surface, opening the hips and easing pressure on joints and lower back across positions. High-density polyurethane foam core, patented interlocking threads for grip. Available short, regular, or tall (up to 36 by 24 by 14 inches), 100% nylon microfiber, machine washable, ships vacuum-compressed and unmarked. Comfort that makes room for desire.