Like running on air burns up to 30% more calories than a motorized treadmill. Dimensions: 69.9" L x 32.8" W x 64" H | Weight: 280 lb. Max User Weight: 350 lb. Easy on the environment runs on your energy with zero electrical consumption. Optimal for all types of training.. Commercial durability 150, 000 mile belt life. Natural running feel promotes efficient running stride.