This stepper is made of heavy duty platform. The fitness aerobic step is ideal for work out classes or regular home use. With it, you can invite your friends or family to take exercise together to keep healthy and fit either at home or in the office. Three levels that can be stackable are very convenient to meet various needs. With a weight of 18 lbs, it is easy to carry and assemble. Aerobic step will give you a unique and professional aerobic exercising experience. If you are looking for a