Upgrade Function: Seat rod with advanced double row support rod, upgraded double suction cup seat auxiliary tool, provides larger suction cup area and greater stability, more stable and durable.Ergonomic design: It has a soft and thick foam handle to protect the ankle from injury.Sit-ups are now completely correct, without external help back pain is a thing of the past.Adjustable height: The spring clip of the abdominal device has a height adjustment that can meet different needs.You can adjust the height of the sit-up exerciser at any time to find the most suitable height.Easy to use: First wipe the dust on the floor and the suction cup with a clean damp cloth.Place the suction cup on the wiped floor and suck air from the suction cup to complete the installation.Suitable for almost all users.Train anywhere: You can train sit-ups at home, in the living room, on the balcony, in the room or even in the office.So that you can enjoy sport at all times