This 3 line green laser level features a green beam for clear visibility on the jobsite. This laser features a second plumb line that forms a 90° intersecting line on the floor and ceiling, great for installing lighting or cabinetry. A built-in magnetic pivot bracket mounts easily on metal surfaces for added convenience. This laser also features a micro adjust knob for precise alignment of 90° intersecting lines over greater distances. DeWALT® DW089CG 3-Line Laser Level, +/-1/8 in at 30 ft Accuracy, 90° Auto Leveling, (4) AA Battery