Black Decker Sight Line Laser Level

I got the Black & Decker Sight Line Lasor Level model number BDL2105 for a Christmas present a few years ago. It was pruchased at Walmart. It is battery powered. It is handy little tool to have around the house, although it is not the easiest tool to use. To use it you have to point the lasor at the wall, or wherever you want to have a straight lasor line, and then press the button and it projects a straight line onto the wall. The line that it is projecting is perfectly straight. But depending on how you are holding the lasor level the straight line could be at an angle. So I'd say it is not completely accurate. It is a good idea, but it just isn't quite completely effective. It is a nice little tool, but I probably would not have bought it myself.