Amazon.com: adidas Gymball - 55cm Exercise Ball with Dual Textured Non-Slip Surface for Maximum Grip - for Core Workout, Improving Stability, and Posture at Home or The Gym - Hand Pump Included -
Adidas Adbl11247GR gym ball
Adidas Stability Gym Ball 65 cm - Orange
Adidas 65cm Exercise Ball with Pump – Workout For Less