Description: More stable: The sit-up assister uses a larger and thicker natural rubber suction cup, which has a larger force-bearing area and stronger absorption, so it is more stable during exercise. Adjustable height: The sit-up suction cup assister has 3 gears to meet the height of different users. High-density foam: High-density foam is soft and comfortable, providing good cushioning for feet during exercise without causing pain. Upgraded support rod design: The support rod is lengthened to 28 cm, designed to fit the length of the foot, and tightly wrapped with foam, making it safer and more comfortable. Easy to install: Wipe the floor clean and then press the wrench to attract. The extended handle is easier to fold and more convenient to use.