The movement is smooth. I believe there are no problems with the hydraulic components. The cylinder length is 13.81cm (Pro). To prevent the stepper from scratching the flooring, I've attached rubber cushions. I initially used a mat, but the appearance wasn't great, so I switched to rubber cushions. I'll include them as a bonus. There are minor scratches from use, but there are no operational issues. Please check the photos for details. Items other than those shown in the photos are not included. Please also check the condition in the photos. *Used indoors on a wooden floor. You can exercise in a comfortable indoor space, even on hot or cold days. Instant purchase is welcome! I will adjust the price at my discretion. I strive to provide a pleasant transaction, so thank you for your cooperation.