An economical, yet reliable, walking treadmill with smooth, quiet operation. Achieve the maximum intensity of your workout because you power the belt, not a motor. This also allows you to select your own pace and alter it at any time. Heavy duty weighted flywheel insures a smooth, quiet operation. Comes almost completely assembled in shipping carton. Very limited assembly required. Folds and locks in the upright position for storage. It rolls away until you are ready to use it again. Walking surface is 41.5' x 13.5' Single button electronics monitors speed, distance, time and estimated calories burned. Comes with two AA batteries. 250 lb. user weight limit. Warranty 1 year frame, 90 days parts and labor Maximum tested weight limit is 250 pounds. Product is not recommended or guaranteed for use by users that surpass this limit.