With the Stanley Fatmax FMHT1-77416 you can paste wallpaper borders straight on the wall. The 360° line laser has a horizontal laser line that can be seen all the way around. Handy if you want to stick the wallpaper straight and at the same height on all walls. Of course the line laser also has a horizontal, vertical and cross line that shine on one wall. The laser is self-leveling, which means that it is automatically level with a leveling range of 4 degrees. The maximum range of this laser is 20 meters. Place the laser in the supplied holder and adjust the position of the laser by moving it up, down, left and right. You mount the holder on the wall, ceiling or a pole.