The Milwaukee® 16-Inch REDSTICK™ Magnetic Box Level is long-lasting, strong, and easy to use. Its ALL-METAL BACKBONE™ is part of a tough frame that increases accuracy and durability. The Milwaukee 16-inch RedStick magnetic box level has a large, easy to see bubble and vial spirit. SHARPSITE™ Vial Technology protects the vials in the event of a collision. Amplified Rare Earth Magnets allow you to securely fasten the level to metal surfaces. The Milwaukee aluminum box level is accurate to within 0.029 degrees and .0005 inches per inch. Its high contrast vial system increases the ease of cleaning the level. It features non-slip grips that let you safely secure it to a wall. High-density end caps protect the tool and you can remove them when you're working in small areas.