325 lbs. user weight capacity. Extended treadmill belt size of 46" L x 20" W provides extra space for walking. This product ships in two boxes and might arrive seperately in a few days apart.. Large desktop size of 46.5" L x 24" W. Air piston assisted single lever desktop height adjustment range 39”-52.5” measuring from the treadmill deck. 5 Preset workout programs for an easy or challenging workout. 3 Workout goal settings: time, distance and calories burned. Highly visual backlit LCD Computer display features elapsed time, distance, calorie burn, and speed. The Treadmill can be easily detached and rolled away for storage. Speed range starts at .6 mph and then can go up to 4 mph via .1 mph increments. 4 Convenient 1/2/3/4 mph quick speed adjustment buttons.