The Orb Deep Tissue Massage Ball from Pro Tec provides benefits similar to those of a foam roller in a smaller, more travel friendly tool. Made from high density EVA foam with a contoured outer surface to prevent slippage. 5 in. diameter provides aggressive deep tissue massage to the IT band, hamstring, quadriceps, calf, and more. Multi directional roll offers focused massage to target areas. Deep tissue massage reduces muscle fatigue and tightness, promotes flexibility, and enhances performance.