Reduces force needed to move loads up and down stairs. Decreases back injuries and lowers Workers Compensation costs. Lightweight aluminum construction and ergonomic design reduces user fatigue and increases driver retention. Climbs up to 29 steps per minute. Curved-back frame for kegs and cylinders. Climbs stairs faster than a standard hand truck. Up to 375 pound capacity holds 2 kegs or 17 twelve-packs. 170 model, ergo handle, 19" x 9-1/2" nose plate w/grooves, 10 inch pneumatic wheels. 8" Maximum step height. 220 steps Battery capacity approximate steps (with maximum load). 300 steps Battery capacity approximate steps (with half-load). Six month warranty on battery.