Feature:Strong adjustable resistance rope tenacity not easy to break]-Adjustable height and length band gives you the best ultimate resistance, which has a better effect on stretching and muscle tissueRolling wheel Stable - the two-wheeled roller coaster can provide stability when rolling in any direction and can exercise on an inclined surface Slim efficient - the comfortable foam cushion grip offers you excellent stability, great abdominal fitness exercises for men and women, and will also promote the growth of teenagers Comfortable non-slip plate -abdominal rollers: Machine accessories include extra thick and heavy wide knee pads for maximum comfort in homes and gyms to prevent knee injuriesPackage includes:1x abdominal wheel1x storage bag