RRG 13" x 5.5" Foam Roller for Muscle Massage, Physical Therapy, Bodybuilding, GYM Exercise-Increased Circulation & Flexibility, High Quality Durable EVA + PVC Roller Wheel Foam rolling has transformed from a once mysterious technique used only by professional athletes, coaches, and therapists to a familiar everyday practice for people at all levels of fitness. High Quality Durable EVE + PVC material, designed to withstand repeated use while maintaining shape and integrity. Best for anybody who wants for muscle massaging, physical therapy, gym exercising, relaxing after work out. 13 x 5.5 inches, 500pounds weight limit; 1 Year Warranty