Are all Stability Balls created equal?

Improvised

Are some stability balls better than others? Do you have one? Do you use it and like it? How much was it?

Thanks!

harley0269

i have 2 & i love them!
my first one i got from my physical therapist & its the best! (but unfortunately its in my storage locker right now & i cant get to it easily, so i had to get a new one. my new one is from walmart. its a golds gym & was under $10 i believe.