DMI Reversible Gel Foam Seat Cushion with Nylon Cover, 16in x 20in x 2in, Black

features & benefits: get the best of both worlds with this reversible gel foam cushion one side of the cushion holds firm foam while the other side is cushioned by soft foam for ultimate versatility and comfort features a generous amount of gel between the firm and soft foam that conforms to your body, offers great stability and provides welcome relief to the lower back and tailbone areas adds extra comfort to office chairs, dining chairs, wheelchairs, larger car seats, boats, rvs and much more removable cover has positioning straps and handles for easy carrying and transport specifications: reversible cushion gives you the option of firm or soft support removable cover has positioning straps and handles for easy carrying and transport size: 16 x 20 x 2 inches black nylon cover