These heavy-duty casters are made of high-quality mixed steel and cast iron, with galvanized steel wheels and a zinc-plated finished yoke. With a load capacity of 1000 pounds and 360-degree swivel rotation, they are suitable for a wide range of heavy-duty applications, including pallet jacks, handling trucks, and material transition carts. The casters are easy to install and replace, and designed for plate mounting. They provide smooth and quiet operation with strong roller bearings and steel spanner bushings.