1. [Ideal design for full body massage]: This split peanut-shaped massage ball is perfectly designed to reach the hard-to-reach stabilizing muscles around your spine and vertebrae, without applying pressure when you lie on it. 2. [Durable material]: Made of EPP rubber, this massage ball is firmer than a tennis ball but softer than hard, spiky plastic balls that can be painful. It is durable for long-term use. 3. [RELAXATION AND PAIN RELIEF]: Fascia training is the perfect complement to traditional treatment methods such as classic physiotherapy, osteopathy, and connective tissue massage. Muscle tension and fascial adhesions are specifically released through self-massage. 4. [ERGONOMIC]: This ball suits everyone. Thanks to its concave shape, this ball is particularly well suited for neck and back exercises along the spine, providing optimal muscle tissue massage, unlike a massage roller. 5. [PERFORMANCE IMPROVEMENT]: Top athletes practice fascia training after intense exertion to optimize muscle recovery. This deep massage promotes better tissue circulation and prevents muscle soreness. This allows you to return to training faster and develop further.