Are you looking to up your game when it comes to your core workouts? Well, this routine certainly will push you to the max! You may have seen in certain gyms or fitness studios a small wheel with two handles on it. That, my friends, is the Ab-Wheel, one of the greatest, simplest, and most core crunching tools for fitness. The ab-wheel allows your body to get a full workout using range of motion, tension, and just plain core strength. Up for the challenge? Try this workout from Body Solid and see what your abs can do for you!