Double-row support rods - improved sit-up assistance, with advanced, double-row support rods which are more solid and comfortable and offer higher efficiencyStrong self-suction - sit-ups device with suction, stable suction power, non-slip and not loose This sit-ups assistant enables you to free your hands and do exercisesThree adjustable heights - the height of the abdominal weight loss exercise device can be adjusted in three positions and you can easily adjust the height that suits you for your different exercises Comfortable and solid - the self-priming sit-up bar is solidly processed; the foam cover on the handles as well as the threads are all without corners and edges, and are soft, thick and non-slipLightweight and portable - the sit-up bar with suction cup is small and compact, so it does not take up much space in the apartment and can be taken with you on holiday It can help you exercise your abdominal muscles to reduce fat