ADHD Chair for Child Adults, Wobble Stool Fitness Seat, Spinning Chair for Stability, Balance, Yoga, Office, School, Wellness, Flexible Active Sitting with Non-Slip Base and Washable Seat Cover Black 19 inch is up for auction in Office Products. The current bid is $2.50, 98% below the $109.99 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.