Experience comfort like you’ve never known with this deluxe foam cushion. Unlike regular convoluted cushions that have high-pressure peaks, this professionally designed cushion has independent foam blocks that evenly support the entire sitting surface. Each individual block acts like a spring, adjusting to every anatomical contour for perfect pressure distribution and custom support. Designed for wheelchair users, the cushion is also ideal for anyone who sits for long periods of time. 16″L x 18″W x 4″D. Plus, buy a cushion, get a removable, machine washable, blue poly/cotton cover FREE! (A $6.99 value.)