It is pretty much as Rick describes it, with the possible exception of the "glue". Some mirrors are stuck as if glued, and others seem to just pop right out. Not sure why they are not consistent. When procuring a new glass at a salvage yard, I usually just cut the rim off the rubber part and make it a bit easier to remove the glass. One tip is to put your mirror in the sun to warm up the rubber part so it is easier to work with.