McKesson, Coccyx Seat Cushion McKesson 18 W X 14 D X 3 H Inch Foam, 1 EachProduct Description McKesson Comppressed Coccyx Cushion Cut out reduces pressure on spine and coccyx (tail bone) when seated Tilt design helps restore spines natural "S" shape Great for home, office, and travel use Automatically expands to full size when removed from packaging Comfortable and durable foam construction Includes removable, machine washable cover Individually packaged for retail use FSA eligible Not Made with Natural Rubber Latex