This AB roller is designed specifically to tone all your body parts with emphasis on trimming the abdomen or the tummy. It is made of two wheels which are very firm on the ground, a stainless steel rod covered with sponge for a comfortable easy grip, non-slip and sweat absorbent. The ab wheel roller is very easy to assemble and can withstand a heavy weight. When using it, place an exercise mat on the ground and kneel on it, then begin to move the roller in the forward direction along with your body; the whole  body stretches and the tummy gets trimmed. Daily use of the roller will bring results in a few days, try it!