Made of lightweight fiberglass and reinforced with nylon polymer, the Milwaukee 600 lbs. Capacity Hand Truck is a rugged workhorse. The strong 1-Piece frame construction, combined with the wide tread, 10 in. pneumatic tires, make the hand truck easy to use on any terrain. Fiberglass-reinforced nylon frame is strong 10 in. pneumatic tries mounted on steel hubs Flow-back handle allows 1 or 2-hand grip 600 lbs. load rating Contoured cross straps cradle moving objects