Shop HeelFixKit A complete approach for the management and treatment of heel pain. HomeShopHeelFixKit Foot Therapy Ball Coming in three sizes, 70mm 80mm & 100mm diameter, these therapy balls help strengthen the flexor muscles (gripping) in the toes of the foot.Stronger feet are comfier feet £8.95 + More Stay one steap ahead in the treatment of foot and lower limb conditions. Call the HealthyStep team on 01457 839549