This Zinnor Muscle massage stick roller is all natural, works great and looks woderful. It has an amazing feel to it once you start rolling it over your tired sore muscles. It helps to do deep tissue massages so your muscles can relax and not cramp up. It works on the tripper points of your body and the wheels help to alleviate pain and stress. It is so easy to use and put away afterward. We were really excited to finally get one and try it out. Feels great.