DESC: The Ab Trainer& Original is made with the same patented technology as the commercial Club Pro, the Ab Trainer& Original is for home use and is perfect for membership drives, promotions and retail sales. The Ab Trainer& Original is the most effective exercise equipment for training your abdominal muscles without straining your neck and lower back. There are various abdominal exercises which can be performed with this product to help you obtain "6-pack abs", a few of which are basic crunch, oblique crunch, raised knee crunch and oblique, raised straight leg crunch, bicycle crunch, double crunch and scissor crunch.