Description:This item is a must for home enthusiast that want to execute the job with speed and accuracy. It reduces all problems associated with accurate lining or leveling. Easy to use, compact and lightweight, it can help you easily to finish home-renovation project, as installing floors, framing, laying out tile, and hanging pictures, etc.Features:It can be used to hang pictures, install shelving for a right angle.Ideal for any job that requires a straight line or accurate measurement.Dual diodes for making 90 degree beams on any surfaces.Convenient for repairing at home.Can projects 2 lines: vertical line, horizontal line, cross line with an accuracy of 0.01.Specificaton:Material: ABSColor: Yellow, Red (Optional)Wavelength: 625nm-670nmAccuracy: 0.01Beam Angle: Right AnglePower Supply: 2 x 1.5V 3A batteries (Not Included)Product Size: Approx. 118 x 70mm / 4.65 x 2.76inchPackage Weight: Approx. 104gPackage Included:1 x Infrared LevelNote:1. Please allow 1-2 cm error due to manual measurement and make sure you do not mind before ordering.2. Please understand that colors may exist chromatic aberration as the different placement of pictures..