[Wide angle] This handlebar mirror has a diameter of 6.8 cm. The surface of the high-definition convex mirror is smooth and glare-free, the vision is clearer and wider, and the driving is safer. 360° Using a rotating design 360 degrees, this safety mirror can be adjusted to will. In addition, the glass rear-view mirror can be installed on the side left or right, so the rider can clearly see the vehicle behind without turning their head.[Robust and durable] The bicycle mirror is made of made of durable nylon resin, impact and scratch resistant. corrosion. The sturdy structure ensures that this mini rearview mirror can also be used. for a long time. When unexpected bumps occur, it will not break easily.[Easy Installation] 1. Connect the expansion screw to the rearview mirror (please do not tighten the screw first) 2. Remove the connector of the handlebar, insert the expansion screw into the hole of the handlebar 3. Turn the screw and tighten the bicycle mirror.[Wide range of applications] This mirror is suitable for: the extremity left or right of the handlebar. Suitable for handlebars from 17.4 mm to 22mm (inner diameter), please measure before purchasing. Suitable for; all kinds of bicycles, such as racing bicycles, mountain bikes, city bicycles, motorcycles, electric bicycles, etc.