Empire 72 In. True Blue I-Beam Level superior performance in all key areas of user needs and functionality. It features exclusive high contrast vial surrounds that make viewing easier in all light conditions, along with high impact acrylic e-Band vials for enhanced durability. The vials include patented blue-bands to maximize bubble meniscus visibility and provide accuracy within .0005 inch per inch in all working positions. Constructed with an all-metal aluminum frame, this level s long-life accuracy and is equipped with impact-resistant end caps to withstand harsh job site conditions. Additional features include a top-read window for clear overhead viewing and built-in molded grip zones for enhanced portability, making it an i tool for professionals seeking reliability and precision. Model Number: E55.72