everlasting comfort doctor recommended memory foam seat cushion for office chairs & car - ergonomic office desk accessories - cushions for tailbone pain relief, sciatica (black, large) 01. black mesh large is up for auction in Office Products. The current bid is $1.00, 98% below the $47.98 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.