●Dimensions: 3270 X 930 X 1450mm ●Main material: steel pipe ●Installation method: direct buried ●How to use: Hold the armrests on both sides with both hands, step on the bottom tube, keep your upper body balanced, twist your waist and walk to the other end. ●Main function: increase the flexibility of the practitioner's waist, legs and ligaments, and dredge the back meridian.