Forget sit ups. Forget Crunches. There’s a smarter (and yes, tougher but better) way to enhance your abdominal performance and definition. The CTF principle ensures the ultimate AB workout as well as making the abdominal core more successful in all three planes of motion – sagital, frontal, and transverse. The natural result – improved core strength, athletic performance, and definition. There’s no other AB workout like it. No where. 3D ABS will define the way you look and perform.