Instruct: Classify the given review as either positive or negative.
Query: CST Laser level/plumb

I FIND THE UNIT EASY TO USE COMPARED TO THE LASER PLUMB THAT I PREVIOUSLY OWNED. NO ASSEMBLY REQUIRED FOR EACH USE. VERY COMPACT, LIGHT WEIGHT AND MOUNTS EASILY ON MY TRIPOD. BECAUSE IT IS NOT POINTED ON ONE END LIKE THE PREVIOUS UNIT I OWNED AND IT DOES NOT LOOK LIKE SOME KIND OF WEAPON, IT IS NOT A PROBLEM TO GET IT THROUGH SECURITY AT THE AIRPORT.