Daweier Anti-Burst & Slip Resistant Exercise Ball Professional Grade Color Silver Diameter 65cm

Good quality, I'm 5'2" female and went with 65cm ball, because I have a taller desk .And I should take this ball as my office chair every day due to my back issues, and on the advice of my physical therapist, This size is prefect, and I HOP IT CAN WORKING WELL FOR MY BACK TOO.

Fantastic product, I was so happy while I get the ball. I used it for the purpose of a chair instead of my desk chair.It works great, I felt very comfortable when I SIT ON IT , THE SIZE IS ALSO JUST RIGHT. the MATERIAL IS VERY STURDY. soft .It didn't roll about on the floor this is most important point for me.