Self-Leveling Laser Level Vertical Levelling Tool Super Powerful Green Laser Beam Alignment

Label:Yes Working distance inside (line): 10-20 m Package:1 pc Laser Level Laser wavelength: 535 nm Laser type: 2 lines green beam Laser class: Class 2 Power source: single charge, 5 hour service

Note: WARNING Emits Laser Radiation - Avoid direct exposure of the laser beam to the eyes.