1.VERSATILE UPGRADED: This upgraded muscle roller stick is built with a solid core tube, and the 10 gears are designed with a tread design.Unlike others, the gap between our gears is specially designed so that it can provides more deep tissue massageand getting muscle relief more quickly. It has a 0.5cm gap between each gear for greater flexibility and to avoid getting any hairs caught in the way 2.QUICK RECOVERY--DEEPER RIDGES: This upgraded massage tool provides more deep tissue massage for foot, calves, legs, hamstring, back, glutes, quads, arms, neck, sciatica, back and shoulder. Very efficient for relieving the pain such as shin splints,plantar fasciitis, sciatica, restless leg syndrome, tennis elbow,etc, to ease muscle soreness, aid recovery, reduce stiffness and pain before and after workouts quantity of delivery:1 piece (Package contents: Only the above package contents, excluding other products.) size:45*4*4cm (Reminder: The size is measured manually, please allow 1-2 cm measurement error) color:black green color (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.) Products from LUOLV's store