Seat Cushion - Standard, 17.7 x 13.8 Inch, Memory Foam Gel, Office Chair Cushion, Desk Chair Cushion for Back, Tailbone, Butt and Coccyx Pain Relief - Support Pillow for Office, Car, Home & Wheelchair X-Large Orthopedic Cushion is up for auction in Office Products. The current bid is $3.50, 81% below the $17.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.