Mirror - Handlebar - German
German-made mirror design while its German designer was in a hospital bed recovering from a motorcycle accident. Super easy to mount and use. Light, tough, adjustable. Useful most of the time and near essential for tours and city riding when you wanna know who or what is behind you.
After a couple years the mirror might dull a bit, but can be brought back to life by scrubbing it with baking soda and water, or toothpaste.