DMI Contoured Foam Coccyx Seat Cushion, 18inH x 16inW x 2inD, Black

Make your seat a little more comfortable with this cushion. The waterproof cover safeguards the foam cushioning for long-lasting use. Adds cushioning and support to your chair, wheelchair, sofa, car seat and more. 6in triangular-shaped opening molds to the shape of your body to help relieve your lower back and tailbone. Made with polyurethane foam cushioning. Slip-resistant bottom helps keep the cushion securely on your seat. Waterproof, removable nylon Oxford cover provides incontinence protection.