Amazon.com: Gaiam Kids Balance Ball - Exercise Stability Yoga Ball, Kids Alternative Flexible Seating for Active Children in Home or Classroom (Satisfaction Guarantee), Blue, 45cm (2.09 Pounds) : Sports & Outdoors
Amazon.com: BB Fitness Premium Exercise Ball (55 cm)- Balance Ball Perfect for Yoga or Home Gym - Stability Ball for Office Seating & More - Anti-Burst Fitness Ball with Pump & Training
Amazon.com: METIS 65cm Exercise Ball - Yoga Ball/Swiss Ball for Home & Gym Workouts | Durable Anti-Burst PVC | Yoga, Pilates, Pregnancy & More | Ball Pump Included : Sports & Outdoors
Amazon.com: Gaiam 05-52205 Total Body Balance Ball Kit - Includes 75cm Anti-Burst Stability Exercise Yoga Ball, Air Pump & Workout Video - Blue : Sports & Outdoors
Amazon.com: CAP Barbell HHE-S065B Cap Fitness Gym Ball, Silver, 65cm : Sports & Outdoors