Uncoated carbon steel construction without rust protection for additional grip with the soil, increasing holding power and benefiting your soil from the oxidation. U shaped loop and sharp beveled ends make it easy to fully insert into the ground. U shaped loop and sharp beveled ends make it easy to fully insert into the ground. Sturdy structure material with full sized dimensions. Widely used with: Landscape fabric, ground tissues, turf saver and synthetic grass, as well as hoses and cables.