These multi-purpose racks are great for holding, storing, and transporting Channel polyethylene L815 lugs. They're made of heavy-duty, high-tensile extruded aluminum alloy 6063-T5 and come with a lifetime rust guarantee. The LA Series features a 1.5-inch extruded aluminum angle heli-arc welded to the frame in a lip load design. And they roll smoothly on standard 5-inch full swivel non-marking casters.