As I was pleased when he arrived mirror! A nice small mirror, ideal to be mounted on my very straight handlebars. Ideal view. By a very clean mirrored planar surface Perfect reduction ratio to have overview and still be able to estimate distances well. The bitter end came soon: After six weeks, the mirror is virtually blind. EURO 20 too much! When Zéfal brings it finally finished, to offer the mirror blind not after a short time!