McKesson, Lumbar Seat Cushion McKesson 13-2/5 W X 13 D X 4 H Inch Foam, 1 EachProduct Description McKesson Comppressed Lumbar Support Cushion Transforms an ordinary chair by providing ergonomic comfort and back support Ideal for those who spend extended periods sitting Subtle contour promotes proper posture offering support and minimizing back pain Attached strap helps keep cushion securely in place Great for home, office, and travel useeven in the car Automatically expands to full size when removed from packaging Comfortable