YKS Multipurpose Laser Level horizon Horizontal Vertical Line 8FT+ Measure Tape Ruler Aligner Standard and metric rulers
Use this Multipurpose Laser Level for hanging pictures, installing shelving,laying flooring, hanging wallpaper and more.Laser light has an on/off power switch.Laser max output: less than 0.5mWPowered by 3*AG13 button cell battery (included)keep the laser level away from water ,dust and sunlight