describe:1.Ergonomic DesignThis sit-up assistive device adopts ergonomic design and fits the feet perfectly when doing sit-ups. Two support rods wrapped in soft rubber and foam are located at the back of the foot. and forefoot respectively provide support while maintaining a comfortable foot feel, non-slip, and anti-sweat, so that the force on the instep can be better cushioned and avoid ankle bruises or sprains.2.Portable and Lightweight: The floor sit-up bar is lightweight and compact and can be used for exercising at home or in the office, especially for those who dont have time to exercise in the gym. It is an ideal portable fitness equipment, saving time and space, and more importantly, saving you the high cost of going to the gym.3.Adjustable Angle and HeightThis sit-up device provides an upper support bar with adjustable height, with 3 gears to choose from. Simply press the spring button and gently push and pull the support rod until the spring button clicks into the other adjustment port. Suitable for people of different body types to train together. You can also share the fun of this sport with family and friends.4.Powerful Suction CupThis sit-up device provides a very strong grip, ensuring that the sit-up assister will not be pulled up during your use. However, before use, the following measures need to be taken: Make sure the floor is flat, smooth and seamless. Make sure the suction brake is in an upright position, then place the device on the floor, press lightly, and pull the suction brake down5.Multiple ways to useThis sit-up assist device can be used for a variety of exercises to help you do sit-ups, planks, side kicks, abdominal exercises, back extensions, elbow planks, push-ups, etc. It is beneficial to exercise the core strength of abdominal muscles, reduce excess abdominal fat, tighten the buttocks, and obtain attractive abdominal muscles.Specification:Product name: Double suction cup sit-upsFeatures: Double pole height adjustment, double-layer bracketGear adjustment: double-lever stepless adjustmentProduct material: cold rolled steel + high elastic foam + rubberBearing range: 95KGpacking list:1 x double suction cup sit-ups