The Guardian Fall Protection Ridge-It Anchor line is designed for use on wood rooftops. This Ridge-It model RIDG-1 is manufactured with a D-ring on one end and is long, while the RIDG-2 is manufactured with 2 D-ring ends. Ridge-It Anchors are composed highly durable stainless steel and zinc-plated steel, and are compliant. Ridge-It Anchors are easy to install, and are ideal for both residential construction and maintenance work.