I recently received and installed the bar end mirros for my Emma 3.0. I am very impressed with the quality of build and the fact that they are made from an aluminum alloy. Initially, I found it a bit difficult to adjust the angle of the mirrors on their ball pivot, but with a bit of effort and rocking them back and forth, they losened up a little so they could be adjusted to the desired position. Once in place, they are rock solid and do not move while riding (probably the reason for the tight fit out of the box). Theses mirrors are a very good, sturdy design and look good on the bike. The glass is very clear and provides the visibility needed for me to safely navigate the roadways. The installation is also relatively simple, by just removing the bar end plugs and inserting them in place, then tightening. I highly recommend these to all Emma owners.