It can be used to hang pictures, install shelves for a right angle Ideal for any job that requires a straight line or precise measurement Two diodes for making 90 degree laser beams on all surfaces Comes with magnets and hanging wall mounts, convenient for home repair Can project 2 lines: vertical line, horizontal line, cross line with 0.01 accuracy The laser level has four functions: The first function: the laser level can measure whether the plane is uneven or suspended, etc. The LV09 laser level can print two kinds of lines: a word line, a cross line and a vertical line (also called angle line). The second function: there are level beads at 90 degrees on the laser level, which can measure whether the level is level The third function: the laser level has a magnet and a wall bracket, which is convenient for repairing in various houses. Model: Laser LV09 Material: ABS plastic Yellow color Product specification: 118*70MM Laser wavelength: 650nm-680nm Power supply: 2*1.5V AAA (battery not included) Net weight: 106G Precision: 0.01 Quantity delivered: 1 piece Note: Due to shooting reasons, there may be some color difference between the picture and the real object.