65cm Black Exercise Stability Ball - 25.6" Diameter Inflatable Yoga Ball for Home Gym Workouts, Resistance Exercises, Balance Core Strength Training | Titan Fitness
METIS 26in Yoga Ball with Pump | Net World Sports
Amazon.com: Gaiam Essentials Balance Ball & Base Kit, 65cm Yoga Ball Chair, Exercise Ball with Inflatable Ring Base for Home or Office Desk, Includes Air Pump, Black : Sports & Outdoors