Skil-Care Seat Cushion 46 X 41 X 13 cm Convoluted Foam - EachSeat Cushion Skil Care 18 W X 16 L X 5 D Inch Convoluted Foam The SkiL Care Corporation Lateral Positioning Cushion's Visco foam surface reduces high pressure spots by molding to the user's anatomy. With a solid foundation, this cushion eliminates sling seat hammocking. It comes with a Low Shear II outer cover that reduces skin damaging friction. Memory foam surface that contours to user to eliminate the high and low spots that increase interface