The unique combination of polymer and steel components make this MILWAUKEE Lightweight Convertible Hand Truck a practical alternative to all-steel models. The one-piece frame is made of rust-proof fiberglass reinforced nylon polymer and is fully integrated for increased rigidity. Steel handle and nose plate offer increased load stability. Folds down into a 4-wheel platform truck in minutes. Contoured cross straps cradle the load. Includes blended poly swivel casters and 4-ply pneumatic tires with built-in stair climbers. Made in USA.