●Surface: 90 cm; height: 15/20/25 cm; weight: 4.9 kg; material: polypropylene ●You can adjust three different heights (15 cm/20 cm/25 cm) according to your needs to adapt to different people and your training needs. The unused booster cushion can be placed at the bottom of the footboard ●By using for aerobic training, it can help you lose weight and promote cardiovascular training. Burn your calories to stay healthy. ●You can use it at home or in the office, the small size does not take up too much space, can carry a maximum weight of 200 kg. ●If you have any questions about the product, please do not hesitate to contact us. We will reply to you within 24 hours.