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, d gray dark gray mesh large is up for auction in Office Products. The current bid is $3.83, 89% below the $35.95 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.