Slight shaking of the treadmill is normal. Folding treadmill. Maximum load of the treadmill: 120 kg. 3 IN 1 Walking、Workstation & Running: 3-in-1 folding under desk treadmill with running mode speed from 1 to 12 km/h, workstation mode speed from 1 to 6 km/h and walking mode speed from 1 to 6 km/h, it's perfect for walking, jogging, working and running.
