The stanley slp3 3 spot laser level operates primarily as a plumb bob with an additional laser dot for horizontal levelling it has a pendulum lock for setting angled lines the floor points transfer to the ceiling for precise alignment suitable for any task requiring aligned points from floor to ceiling such as drywall tracking stud walls and spotlights uses a quick link bracket mounting system a versatile bracket that links into multiple product mounting slots and 14in thread also clamps on to