I want to use this 80T level to draw straight lines (level and perpendicular) on the walls, sometimes I need a big long level, sometimes I need a short level to get into a bottleneck . This level should be perfect for me. but it drops in height between the main body and the telescopic section. You can use it as a beam level or spirit level between panels, but you can't draw with it unless it's in its fully retracted, smallest position. I called Stabila and they said this is the model. So mine is not broken. I'm taking it back to Amazon and using my old set of different length tiers until they change that idea to actually make it work as advertised.