These Plate Casters are a set of two heavy-duty, rigid casters designed for high-load applications. With a total capacity of 1400 pounds, they can support four times the weight of other casters on the market. The casters are made of durable polyurethane molded onto steel, with a 2-inch wide wheel that has a 4-inch diameter. They feature a top plate for easy mounting and roller bearings with a hardened raceway for extra strength. The casters come in a green color and have a 90-day hassle-free return policy, making them a reliable and efficient choice for your heavy-duty equipment needs.