with StayBall™ Technology, this anti-burst exercise ball won't roll away between exercises.
Dual-Action Hand Pump
The Gold's Gym 55 cm Anti-Burst StayBall™ comes with a convenient hand pump so that you can always keep the correct amount of air levels in your StayBall.
The included workout DVD demonstrates how to use the StayBall most effectively.
Ideal for heights 5'11" and Under
This StayBall works best for heights 5'11" and under.
WARNING: This product contains one of more chemicals known to the State of California to cause cancer, birth defects and other reproductive harm, including DEHP, a phthalate chemical.