As the market leader in levels, squares, and marking products, Empire Level is committed to delivering innovative solutions designed to meet the needs of the modern jobsite. The 500 Series I-Beam Levels provide superior performance in all key user needs and functionality. Exclusive high contrast vials make viewing easier in all lighting conditions and feature impact resistant mono-block acrylic vials for dependable durability. An all-metal frame provides superior durability and protects long-term accuracy at .0005-inch per-inch in all working positions. Each level comes equipped with high impact end caps to withstand the toughest jobsite conditions. For added utility, the 500 Series features a top read window for clear overhead viewing and integrated molded grip zones for improved portability. Magnetic models feature a continuous high strength magnetic edge that provides users with maximum holding power when measuring door frames, steel studs, ferrous pipe and other common metalworking applications. Made in USA.