arteesol Exercise Ball, Gym Ball Anti-Burst Yoga Ball, 45cm/55cm/65cm/75cm Extra Thick Swiss Ball with Pump, for Fitness… - Autism Supplies and Developments
55 Cm. Purple Exercise Ball | ProForm
SturdyFoot Exercise Ball, 55cm, 65cm, 75cm and 85cm Gym Ball, Anti-Burst & Extra Thick, Swiss Ball with Pump, Birthing Ball for Yoga, Pilates, Fitness, Pregnancy & Labour : Amazon.co.uk: Sports & Outdoors
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