Lightweight black nylon fiberglass frame is as strong as aluminum or steel and helps to make the Harper Ultra Lite Nylon 2-in-1 Hand Truck w/ Pneumatic Wheels one of the lightest two-in-one carts on the market. Converts easily from hand cart to platform cart in seconds. Chemical and corrosion resistant frame. Stair glides are integrated into the frame help to ease movement up and down stairs. Durable 14-1/2″ x 7″ steel nose plate and handle. 10″ x 3-1/2″ full pneumatic wheels and 5″ x 1-1/4″ phenolic swivel casters. Shipped assembled. 1 Year Limited Warranty.