LOW-IMPACT & ZERO PRESSURE: Under desk elliptical machine is ideal for sedentary office workers, seniors with leg discomfort, and individuals undergoing leg rehabilitation. Elliptical exercise machine's scientific motion trajectory design helps stimulate blood circulation, strengthen lower body muscles, and enhance joint flexibility. AUTO/MANUAL 2-IN-1: The DUREXO elliptical exercise machine provides auto (p1-p3) and manual (12 speed levels) functions. The pedal can move forward or backward. The 12-level speed is suitable for all stages of exercise, including strengthening leg strength, exercising the body, etc. Effectively exercise leg muscle groups to help you achieve fitness goals.