Sit 'n Gym Balls - 65cm diameter | Snoezelen® Multi-Sensory Environments and Sensory Equipment | Rompa
Theraband Exercise Ball, Professional Series Stability Ball with 65 cm Diameter for Athletes and Working Out, Slow Deflate Fitness Ball for Improved Posture, Balance, Yoga, Pilates, Core, Green : Amazon.co.uk: Sports &