I Tried It: A Week With a Balance Ball Desk Chair | Glamour
The Top 5 Exercise Ball Chairs - GameRevolution
Amazon.com: ProBody Pilates Ball Yoga Ball Chair, Exercise Ball Chair with Base or Stand for Home Office Desk Sitting or Workout, 65cm Antiburst Balance Ball & Stability Ball Seat for Back, abs (
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Should You Use an Exercise Ball as an Office Chair?
You might want to rethink using a stability ball as your desk chair - The Washington Post