The Stanley FatMax PB2 is a self-leveling dot laser level designed for interior use. It has two dots (for plumb) and a working range of 100 ft. It is accurate to 1/8 in. over 50 ft. (up) and to 1/4 in. over 50 ft. (down). Its built-in magnetic base adheres to pipe and metal studs. It comes with a carrying case that attaches to a tool belt.