Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Balance Ball Heaven!
Review: Gaiam's balance ball chair was shipped quickly, lightweight, and was easy to assemble.My only complaint is that the ball they shipped in the box was not as large as what is pictured on the box, this site, or even in the manual that comes with it. I ended up going out to Target and purchasing a $9 Medium sized ball instead. Any ball will work on this chair, it is all a matter of how high up you need to sit.For me to be sitting ergonomically correct, I needed the Medium sized ball.Other than that, I love it! You feel your core/abs working almost immediately.
