Improve your power and balance with a strong, conditioned core. The GoFit Extreme Ab Wheel challenges your abs, obliques, back, hips, and glutes for a total core workout. You"ll also see results in your chest, arms, calves, and hamstrings. Exercises range from moderate to very advanced so virtually any fitness level can benefit from the GoFit Extreme Ab Wheel. All of this combined creates another High Intensity Training Tool from GoFit. Part of the GoFit High Intensity Training Tool assortment (H.I.T.T.).