First-class workmanship appealing colors and the diameter of 16 cm as well as the durable material make our balance balls the first choice for physiotherapists and fitness trainers. BENEFITS: Increase your coordination, your sense of balance, your mobility and your body perception with training on our unstable surface. Train your ankle and arch of the foot more effectively and quickly thanks to the use of modern training methods. MODE OF EFFECT: Our balance pad is unstable and can therefore be used for one-legged stand, quadruped stand or cross-fit training alike. Due to the "shaky" base, the body constantly performs small compensating movements. Your brain is therefore under constant stress and controls your muscles every second at night. SUITABLE FOR: Fitness training, aerobics, Pilates, gymnastics, back and abdominal muscle training and pregnancy gymnastics. Ideal for fitness studios, yoga schools, for training at home and during leisure time. Your daily all-rounder for stretching, mobilization, strengthening and for coordination and muscle training. Set of 2 balance balls 2x hemisphere with nub structure Ideal for Coordination training and balance exercises Hedgehog surface to promote blood circulation Robust, non-slip, & skin-friendly Non-slip underside for optimum grip on any surface Dimensions: 8 x 16 cm Color combination: red/grey Our promise of quality As a brand manufacturer with many years of experience and because of our own love for and for sport, we know exactly what is really important when it comes to good sports and fitness accessories. About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.