Stability Ball - recommend one?

DelightfullyWifed

Has anyone used a Stability Ball for their work chair before and can recommend one that isn't going to break the bank? I got approval to use one at work I'm just not sure if there is a good or bad ones.

***Links would be great!

Thanks,
Meghan

Akumu

I got a gold's gym one at walmart that is pretty good. I think it was around $9.

Akumu

http://www.walmart.com/catalog/product.do?product_id=12167836&findingMethod=rr