THERABAND Gym Exercise 55cm Ball for Sport Training , Yoga and Fitness, Home Gym Equipment with Inflation Adaptor, Red : Amazon.co.uk: Sports & Outdoors
Body Power 55cm Gym Ball With Pump (300Kg Burst Resistant) Grey
THERABAND Exercise Ball, Stability Ball with 55 cm Diameter for Athletes 5'1" to 5'6" Tall, Standard Fitness Ball for Posture, Balance, Yoga, Pilates, Core, & Rehab, Red : Amazon.co.uk: Sports & Outdoors
Physical Company Stability Ball – 55cm – Primal Strength