The Core CoasterTM is one of the most dynamic exercise devices ever invented. Incredibly versatile, users can tone and build nearly every muscle in their bodies with an amazing array of exercises from beginner all the way up to advanced levels. The Core Coaster is portable enough to throw a pair in your gym bag or suitcase but affordable enough that you can have a set for home and away. Beginners can use the bands for assistance with the ab roll-out and advanced users can use the bands for resistance with mountain climbers, crunches and fish tails. One hand, two hands and feet can be used on the Core Coaster. Dozens of exercises can be performed from the Glute Blaster to lunges to the Core Angel. Plank variation exercises are superior to crunches or sit-ups. The ab roll-out is one of the most effective core exercises. Try it for yourself!