Blackburn Handlebar Multi Mirror fits to Handlebar End

Attaches to either straight or drop bars, inserts into bar end and tightens with a thumbwheel which expands a wedge on the mirror end. In its non expanded state, it measures 20mm at the end, though this would obviously increase. Viewing angle is adjustable once fitted. Convex (outwardly curved) oval lens for wider angle image measures 99 x 58mm.