Highly durable, lightweight aluminum level with a visible red laser, perfect for most leveling needs. Built-in magnetic strips allow hands-free use on steel surfaces. Can also be used in a vertical position with the on-board circular bubble vial, to plumb studs or transfer points from floor to ceiling. Accuracy of 1/4-in @ 50-ft with up to 50 ft. working range. Vial accuracy: level, 25-30 minutes; circular plumb, 35 minute, "V" grooved base for work on conduits and pipe, Powerful 650nm diode.