These heavy-duty swivel caster wheels are made of steel and coated with phenolic material for superior floor protection and easy cleaning. With a load capacity of 3600 pounds, these wheels can handle heavier loads than many similar products on the market. The wheels have a 2" width and 4" diameter, and the top plate measures 4"x4-1/2" with a mounting height of 5-5/8". The roller bearings with hardened raceway provide extra strength and quiet operation, making them ideal for commercial and industrial settings. With 360-degree rotation, these caster wheels are easy to maneuver. These caster wheels come in a pack of four and are an excellent choice for those in need of a reliable and sturdy solution for heavy-duty applications.