Gaiam Ultimate Balance Ball Chair (Standard or Swivel Base Option) – Premium Exercise Stability Yoga Ball Ergonomic Chair for Home and Office Desk – 52cm Anti-Burst Ball, Air Pump, Exercise Guide

Amazon.com Price: $84.98 (as of 05/06/2021 21:16 PST- Details)

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ALTERNATIVE DESK CHAIR: Featuring a new and improved modern design and construction with a durable reinforced base, combining both comfort and ergonomic back support to alleviate the stress and pains that come with sitting for extended periods of time.
BOOST ENERGY LEVELS: Engages the core, aligns the spine and helps increase energy levels for a more productive and energetic day