Black * 18 W x 16 D x 3 * Custom sizes available * Optional solid seat inserts available ($8.75 Up-Charge) * Relieves pressure at the sacral area while offering patient s comfort and even distribution of weight throughout the cushion * Medium density fire-retardant foam is covered in either a poly/cotton in your choice of black navy or gray medical grade vinyl Shipping Carton Size: 18 L x 16 W x 5 H