TheraBand Exercise Ball, Professional Series Stability Ball with 65 cm Diameter for Athletes 5'7" to 6'1" Tall, Slow Deflate Fitness Ball for Improved Posture, Balance, Yoga, Pilates, Core, Green : Amazon.ca: Sports
Gaiam Total Body Balance Ball Kit - Includes 65cm Anti-Burst Stability Exercise Yoga Ball, Air Pump, Workout Program : Amazon.ca: Sports & Outdoors