enovi ProBalance Ball Chair, Yoga Ball Chair Exercise Ball Chair with Slipcover and Base for Home Office Desk, Birthing & Pregnancy, Stability Ball & Balance Ball Seat to Relieve Back Pain, COLOR MAY VARY FROM STOCK PHOTOS is up for auction in Sports & Outdoors. The current bid is $6.50, 87% below the $49.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.