A:AnswerThe 65cm Pro Stability ball is 81 inches in circumference or 25.5 inch diameter. If you need a ball with 22 inch diameter, then you will need a 55cm stability ball. The GoFit 55cm ball in this same series is Blue.
A:AnswerThe GoFit Professional Grade Stability Ball was tested and withstood over 2000Lbs of STATIC weight. If the ball is used as intended for exercise as shown in the accompanying manual, there should be no possibility of any individual exceeding the static weight limit. Balls should always be inspected for any signs of damage or wear before each use and all maintenance and warnings should be adhered to.
A:AnswerThis question would need to be answered by your doctor since it is specific to rehabilitation of a specific surgery. In general, the GoFit Stability ball is a good tool for helping someone increase their balance and strengthen their core muscles.