PYRUS Yoga Foam Rollers High Density Trigger Point Muscle Roller Stick for Physical Therapy Pilates Body Massage This foam roller is built with sturdy PVC pipe, provides firm but flexible surface with trigger points to relieve back & leg pain, spine tension, stiffness and muscle spasms. Heavy duty massager measures 13 inches long by 5.5 inches diameter. Improves blood flow and circulation to speed up injury recovery, and reduce pain and inflammation. Great for stretching overworked sore muscles and soft tissue reducing stiffness and soreness. High density foam rollers for muscles is great for deep tissue massage, physical muscle therapy before or after exercise, Yoga, Crossfit, Pilates, Bodybuilding, Rugby, Boxing, Running, Weight Training, both sport beginners and pros.