Question for those who have some knowledge of the stabilty ball - I purchased a ball for people 5' - 5'5" and it seems significantly smaller than the one Cathe is using. Should I have gotten the bigger ball? This has been bugging me - I am 5'1" and I think I have read here that Cathe is about 5'2"....
Thanks in advance for any input!
Thanks in advance for any input!