This product is ergonomically designed and can be lifted slowly, greatly reducing the pressure on the user's knee by 80%, allowing the user to stand up and sit down independently without assistance. It is specially designed for the elderly, pregnant women, sports rehabilitation, weak knee joints, and the disabled . The one-button control is easy to operate. The armrest is made of non-slip silicone material and ABS material. The inner side of the valve seat ring has an extended design, which can effectively prevent sanitary problems caused by liquid splashing. At the same time, it has passed FCC, CE, ISO09001 and MSDS certification.