Harper, 400 LB Capacity, Convertible Nylon Hand Truck, Ships At 41" Height But Adjusts To 58" Height For Tall Loads, Locking Construction Means No Hardware To Loosen Or Corrode, Built In Stair Glides, Durable Poly Hub With 8" Zero Pressure Tires, Continuous Steel Handle Allows For Easy Push/Pull Operation, 3" Poly Casters, 30" Platform Length & 12" Platform Width.