OmniSquare Unique Folding Layout Square for Welder, Carpenters Using Table / Miter / Circular Saws, Routers QUICKLY, EASILY, AND CONFIDENTLY SETS TO ALL POSITIONS SHOWN SEE INSTRUCTIONAL VIDEO AT http://www.youtube.com/watch?v=-e9aMLZX9i0 ANODIZED ALUMINUM AND STAINLESS STEEL FASTENERS - WILL NEVER RUST DIE CUT AND HIGHLIGHTED MARKINGS FOLDS UP AND STORES IN YOUR BACK POCKET