5 stars united seat cushion - memory foam chair cushion for tailbone pain relief - ergonomic support for coccyx, sciatica & butt - office, desk & gaming chair, car seat, wheelchair, airplane, black black mesh large is up for auction in Office Products. The current bid is $1.00, 96% below the $25.45 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.