Made from solid diamond plate steel with a protective red powder coat finish. Please note these are high end dollies, designed for easy operation. Wheels have a dual ball bearing swivel design and smooth rolling radial ball bearing axles that provide easy, multi-directional movement when loaded. Compared to the huge resistance youll get moving with a common single bearing dolly, our premium bearing axles will let you roll with much less force. Great for shops, garages and showrooms, these dollies let you easily move cars, trucks, trailers, boats, tractors, ATVs, motorcycles, airplanes and more. Each dolly, measuring approximately 12" x 16", is rated for 1,500 lbs. and includes a convenient handle.