NYOrtho Seat Cushion 51 X 41 X 5,1 cm Foam / Gel - EachSeat Cushion NYOrtho 20 W X 16 L X 2 D Inch Foam Gel High density foam surrounds a dual chamber gel pod providing excellent pressure relief and comfort. Low shear, antimicrobial and fire resistant fabric all incorporated into one fluid proof removable cover Slip resistant bottom with hook and loop straps help keep cushion in place. Meets CAL 117 standards