These Regency 5" polyurethane soft tread swivel casters come equipped with reliable brakes and are direct replacements for the casters that come standard on many Regency sheet pan racks. These heavy-duty, polyurethane non-marking casters enable a smooth, quiet ride, and will fit almost all sheet pan racks that are made of aluminum. <br><br><b><u>Overall Dimensions:</b></u> <br>Diameter: 5"