Tilswall Laser Level,12 Line 3x360°Horizontal Vertical Cross Line Laser Level ToolPlease avoid exposing your eyes directly to the laser beams, healthier observation with laser glasses The intensity of the laser is affected by strong light, making observation difficult. At night or in darker conditions, the laser becomes clear Don't shake! The pendulum's left and right impacts can affect the accuracy of laser measurements 360 12 Lines 3D Rotating Laser Level 12 laser lines output for finer positioning, with self leveling system,