Lash mirrors are an amazing and very useful addition to have apart of your tool collection when lashing. Why? When lashing you are seeing your work from the back end but it is just as important to see your work from the front where everyone else will see your work.
 
This allows you to see a targeted area and make sure your work is done properly and looks great as well as being able to identify any work that needs to be fixed or any snags to be seperated before the client opens their eyes.