Tummy Twister Targets Your Internal And External Obliques Along With Your Spinal Rotation. Both Sets Of Oblique Muscles Are In The Sides Of Your Stomach And Run From Your Ribs To Your Hips Along The Sides Of Your Torso.Twisting Platform Has Magnet Embedded To Provide Magnetic Waves In To The Users Body For Therapeutic Purpose.Just A Simple Twisting Action Can Have A Strong Effect On The Abs.Women Can Get Their Desired Curve Or Flat Abs With The Tummy Twister.Two Layered Constructions For Durability.