Steel, Reusable, Roof Anchor, Center Holes Are Offset To Reduce Possibility Of Truss Splitting During Installation, CanBe Used Off Peak In Flat Position Without Compromising Strength, Can Be Used With Screws Or Nails, Fit Any Wooden Roof Up To 12/12 Pitch, Includes Fastening Screws, 400 LB Maximum Worker Capacity, Zinc Plated Carbon Steel, Meets ANSI Z359.1-2007 Standard With Screws, Net Weight: 2.1 LB.