PhysioRoom.com

Prompt and efficient service, strong construction and easy to fill with pump..

I think I have made a mistake with this item as my gym ball has legs and actually they rather impede the movement if you are using the ball as an office chair - which is the reason I bought it. it's actually very difficult to get the ball under the desk in the right position for sitting at a desk and one without legs might have been easier.

Try doing this and see what you think? Anyway, I'll make do.