Strauss Foam Roller (Black), 30 cm and Yoga Block (Black) Material: Other In-box Contents: 1 Made of Eva foam, lightweight, soft to touch, rich elastic buffer, surface with massage floating point It can board up the soft tissue adhesion and scar tissue, self-massage 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