Set Of 2 Hedgehog Balance Ball, Yoga Half Foot Massage Balls, Balance Inflatable Hedgehog Yoga Balance Disc, Balance Cushion For Sport Training Yoga F Welcome to our store! Actual quantity shipped: 2 piece(s) WORKING PRINCIPLE: Our balance cushion is unstable and can therefore be used both when standing on one leg, standing on all fours or during cross-fit training. Due to the wobbly base, the body constantly makes small compensatory movements. Your brain is under constant stress and controls your muscles every second. MATERIAL: This product is made of qualified PVC, it is safe, flexible and comfortable, which contributes to a more enjoyable workout even without shoes. RELEASE: You can practice yoga with this foot massage ball. It can help relax your muscles, relieve tension and increase blood circulation. HUMANIZED DESIGN: There are anti-slip circles at the bottom of this product to protect you while you practice. There is a gas nozzle that you can inflate yourself. APPLICATION: Suitable for fitness training, aerobics, Pilates, gymnastics, back and abdominal muscle training and pregnancy gymnastics. Ideal for fitness studios, yoga schools, for working out at home and in your spare time. Your everyday all-rounder in the area of stretching, mobilization, strengthening, coordination and muscle training. 100 percent satisfaction - Our customers are our priority. If you find any problems with the products after receiving the goods, such as damage and incorrect quantity, please contact us immediately. We do our best to provide you with satisfactory after-sales service