1. Stable suction, non-slip, stable and not loose 2. Suitable for a variety of smooth floors 3. Thickened rubber pad, bump massage pedal 4. Lengthen and thicken the support rod, the heel fits and supports evenly during exercise, safe exercise 5. The single suction cup has a diameter of 13 cm, which fits the suction force and is more stable. 6. 3 levels of height adjustment to meet different needs 7. Material: cold rolled steel + foam + rubber 8. Adjustable height: 19-22 cm
