This compact laser will help you with all your aligning, leveling and plumb tasks. Features include a built-in leveling screw that allows you to level the laser without optional base. Accuracy of 1/4" at 50ft, with two vials one for level and a bullseye vial for plumb. Comes standard with beam spreader(creates a line), beam splitter and case. Also has a magnetic base for use on pipe and metal surfaces.