Well made but poor design.
The large flat glass mirror is a good size and easily adjustable on the stem. The mirror remains in place of bumps and rough ground. The stem is good quality chrome and robust. The handle bar clamp is poorly finished and will mark the handle bars. The stem is very long and I found it that the length tends to magnify any minor handle bar movement so that the road behind is seldom in vie in the mirror.
I found that the flat glass did not reveal traffic behind me at all well, and the stem is too long for me. This is largely a question of personal preference. Anyone wanting a very long stem with a large flat mirror will find this one very good and a good quality finish.