The Ab King is specially designed to achieve a flat, sexy, rock-hard stomach and a slim waist in just 3 minutes a day. With most devices and exercises, you only engage your abdominal muscles during the upward movement; thanks to the unique design of the Ab King, all your abdominal muscles are also engaged during the downward movement. Furthermore, not only your neck but your entire body is supported. With no less than 4 resistance levels, you can control the intensity and difficulty of your workout yourself. The Ab King is foldable and easy to store. Shipping costs are calculated separately. Please complete postcode and city.