4 in

Red Polyurethane and Steel Rigid Plate Caster, Capacity 350 lbs, Abrasion resistant, Heavy-duty

for moving heavy carts through busy warehouses, stockrooms, or workshop floors without slowing down operations

Handles frequent trips across concrete, tile, or sealed surfaces with consistent, reliable performance

A solid choice for equipment that needs to travel the same path repeatedly, such as assembly lines, storage racks, or tool stations