The Klein Tools Self-Levelling Cross-Line Laser Level is a high-performance laser leveling and alignment tool for professionals. This level provides a reliable pendulum self-leveling system to allow you to measure with confidence. Clear, powerful laser level lines can be projected independently to aid anything from hanging a picture to aligning concrete. Up and down plumb bobs are much more precise than a traditional string bob. Equipped with an integrated magnetic mount and an additional ceiling clip mount, Klein's cross-line level enables a multitude of alignment and layout applications such as running conduit and installing electrical panels.