EVA material: It is manufactured with High-Density EVA foam, flexible, and easy to handle the force from any angle. anti-skid, comfortable, tasteless, environmental protection, safe and non-toxic. The ball won't collapse under body weight like our competitor's versions. Get deeper, more targeted trigger point massage. 3D Design: Ergonomically design to muscle-massage, 3D imitation finger trigger point technology, can effectively stimulate the body acupuncture points. Massaging for the back, hips, thighs, legs, and other body parts. Quickly relief for the whole body aches and pains. The Graphic palm grid design is good for transition, omni bearing massage relaxed. The unique multi-dimensional surface accurately simulates the massage master precise technique, easier to relax and better effect. MULTI-PURPOSE: While rolling the Foam Roller, release the fascia quickly and the toxin in the muscles to Increase muscle elasticity. Improving the body aches, spinal pain, swelling of the legs and feet, lack of exercise, and other symptoms. It can also be used for preheating and post-exercise calm, reduce the risk of sports injury and reduce the pain after exercise. In addition to yoga, Pilates, and other fitness exercises, it is also used for physical and postoperative rehabilitation. Light-weight and Easy to Carry: Due to the super-lightweight foam, the massage roller is easy to take away with no bulk feel. Compact size 13 x 5.5", keep it in the pack-sack provided free of cost &bring this with you to the office/gym/ travel, Get exercising anytime and anywhere. Not exposing it to dust, space saver, and convenient to storage.