Review on 9-Inch URBNFit Pilates Ball For Yoga, Barre, Physical Therapy, Stretching & Core Fitness - Small Exercise Bender & Massager Ball With Workout Guide To Improve Posture And Relieve Back Pain. by July Sin

The ball is fine. However, blowing it up and inserting the plug is not. I never could get the plug in completely so it sticks out from the ball. I know someone else who bought this ball and had the same problem. Possibly I am just not strong enough. However, the vendor was very cooperative and sent me another ball in case it was defective. Same problem. So I use it a little deflated and I think it's better like that anyway.