Element Fitness Commercial 75cm Stability Ball
550 lbs rated.
I was only able to get it to 65cm when i pumped it up, I read this that this may be standard during the initial blow-up, and that you must increase it to full capacity in a few days. Aside from that, it had a few 1cm indents in the material, possibly due to improper storage? It's only cosmetic it seems but still annoying, other than that it works just fine.