Strauss Combo 4 Made of EVA foam,Lightweight,soft to touch,rich elastic buffer,surface with massage floating point Also can break up the soft tissue adhesions and scar tissue,Self-massage and myofascial release, break trigger points, relieve tension fascia while increasing blood flow and circulation of the soft tissue. Waterproof,anti-slip,non-toxic,tasteless,odourless,The most popular pilatesyoga trainers, can also do children's sporting goods,swim rod Can eliminate muscle tension, and strengthen the core muscle strength and flexibility, stretching the muscles and tendons,lipid-lowering toning Perfect tool for Yoga, Pilates, Fitness Exercises, Physiotherapy, Rehabilitation