This Seesii laser level projects three laser lines ,one 360° horizontal and two 360° vertical planes , so that users can accurately and quickly execute level, align, square and plumb applications.The laser lines are visible up to 130 Ft. The Smart Pendulum System self-levels and indicates out-of-level condition to help ensure an accurate layout, and it locks the lines at any angle. The pendulum system locks when switched off, to assure secure tool transport. The included magnetic pivoting base provides microfine height adjustment, and it allows the laser to be attracted to any iron surface, for level lines at any height.