Convenient separate turning on horizontal or vertical, as well as turning off with the same buttons. I have another level so turning it on is much more difficult, turning it on once or twice is not a problem, but if you do it many times a day, it really gets to you. Convenient magnets on the body, you can cling to the riser, etc. Convenient plastic case, inside there is a place for fastening to the wall when there is no metal. When set unevenly, it starts to blink, and also allows lasers to be fired in a curvilinear manner if needed. It's nice that now you don't need to carry a stand for a level, there's enough junk already. Well, the last one is a green beam, it is clearly brighter than red, I will not say that it is thin. Thank you!