I love this chair! It helps with my slouching and my leg-crossing, both of which I am always working to stop. The only downsides to this chair is that I have to re-inflate it every few months, and the breaks on the wheels are easily tapped, which is irritating, and one of them has already broken off (likely the fault of a student, but anyway). The final thing that I found problematic was that this particular chair was too short for my desk, and I had to purchase chair leg extenders from http://www.gaiam.com/product/classic-balance-ball-chair-leg-extenders/95-1561.html
Balance board is great, packaging is awful. Box was squashed and partially open upon arrival, because of the tear in the box an edge of the balance board was scuffed up causing a small area on the edge to splinter. Sanded the edge and now it’s as it should have been on arrival.
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