Strauss ST-1441 Grid Foam Roller (Black), 33 cm and Yoga Block (Black) Made of EVA foam,Lightweight,soft to touch,rich elastic buffer,surface with massage floating point. It can break up the soft tissue adhesion and scar tissue,Self-massage and my ofascial release, break trigger points, relieve tension fascia while increasing blood flow and circulation of the soft tissue. Made of high-density and sturdy PV foam for long-lasting durability Featuring beveled edges for soft, firm and easy griping, lightweight and non-slip even sweat Waterproof,anti-slip,non-toxic,tasteless,odourless,The most popular pilates yoga 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