As the dominant market leader in levels, squares, and marking products, Empire Level is committed to delivering innovative solutions designed to satisfy the needs of the modern jobsite. Exclusive high contrast vial surrounds make viewing easier in all light conditions and feature high impact acrylic e-Band vials for unmatched durability. Empire's e-Band vials also include patented blue-bands to maximize bubble meniscus visibility and are accurate to within 0.0005 in. per in. in all working positions. All metal, I-Beam frame construction guarantees long-life accuracy. The E55 Series features a top-read window for clear overhead viewing and has built-in molded grip zones for enhanced portability. Magnetic models include a high-strength continuous magnetic edge which provides users maximum holding power when measuring door frames, steel studs, ferrous pipe and other common metal-working applications. All True Blue products are backed by a limited lifetime warranty.