Review on Enhance Precision with the David White D620 Sighting Level by Kyle Kriglstein

It works well for what it is. Instructions are on the Packaging as I show in the photo described along with its use.Be sure to remove the plastic wrap from the glass in front and light the hole in the top where the spirit level is.The body is metal as described.If you special need accuracy, please purchase a transit instead or in addition to it.