Hand truck features an ultra-lightweight construction that's as strong as aluminum or steel for easier handling and maneuverability. Adjustable handle extends to 39" tall to help prevent strenuous movements during use. Convertible design transforms easily from a hand truck to a platform truck in seconds for versatile performance. Durable frame resists chemicals and corrosion for long-lasting use. Stair glides are integrated into the frame to help you easily move up and down stairs. Solid rubber wheels do not require air and roll smoothly across floors for effortless mobility. Hand truck is designed to support up to 400 lb.