Convertible Hand Truck Is Functional And Built To Last. Versatile Design Easily Converts From A Two-Wheeled Hand Truck To A Four-Wheeled Platform Truck. Simply Slide Handle Out Of One Set Of Tubes And Into Another. Two-Wheel Position Holds 400 Lb. Four-Wheel Position Holds 500 Lb. Heavy-Gauge, Tubular Steel Frame Has Welded Joints For Extra Strength, Powder-Coat Finish And A 14" X 7" Toe Plate. 8" Solid Rubber Wheels Have Ball Bearings And 4" Solid Rubber Casters.