This 5" x 2" polyurethane on iron heavy duty swivel caster with tread brake is a durable, high capacity caster that fits almost any budget. The polyurethane tread is floor protective and non-scuffing. Our 45 Series is an economical lineup of casters and wheels designed for a range of applications with load requirements ranging from 300 to 1,250 pounds per caster. From shop carts to containers, to platform and lumber carts the 45 Series is the most competitive and in-stock 2" wide solution.