Hydraulic, right? Now the price of a better treadmill is around 200 yuan. There is no need to spend 150 on a poor quality one. Don't buy a u-shape. I make fitness equipment, and the U-shaped treadmill is an outdated product. In addition, buying a treadmill online depends on the overall size of the treadmill. The pictures look the same, but they actually differ a lot. The easiest thing is to see if you have passed CE and Rohs certification, and. Generally speaking, light weight and poor quality. This is because the choice of steel pipe thickness is different, and the hydraulic stepping with good quality has a heavier chance. In addition, are hydraulic cylinders produced according to international standards?