Material: EVA, Polypropylene. Durable, Lightweight, Phthalate-Free. Design: Logo. Length: 12.68in. Width: 5.31in. Height: 5.31in. ed, Portable, Treaded, Triggers Myofascial Release, Tubed. Deep Tissue Massage, Helps Relieve Stress, Increases Blood Circulation, Supports Muscle Massage, Trigger Points Massage.