Pilates ball 25 cm Product description: Effectively correct posture, perfect the curve after long-term use. The pilates ball is unstable, so you have to use your body's strength to stay in balance, which in turn improves the strength, flexibility and alignment of the body. Before using training to activate the body, increase circulation and improve muscle readiness.After training, to relax the lumbar area, activate the core muscles and improve recovery times by reducing pain and restoring body alignment.If you do not use it for a long time, you can discourage the ball and store it. Specifications Material: Phthalate-free PVC Color: Purple Package weight: 100g (0.22IB) Package size: 12.5 * 10 * 3 cm (4.9 * 3.9 * 1.18 inches)