Premium Quality: Casters are made of solid polyolefin, which yields a high shock load, impact-resistant, and abrasion-resistant wheel. These heavy-duty wheels are lightweight yet hold high weight capacities and are...
Super Heavy Duty Caster: The Super heavy-duty casters are made of high-quality polyurethane tread high-impact cast iron core, and bright galvanized steel yokes. The polyurethane Wheels have strong abrasion resistance...