This bicycle mirror features, can be angled to view road conditions from different directions, provide you with multi-angle rear-view effect. Designed with flexible adjustable support bar, can be bent to any angle to meet your needsQuick installation and removal without tool, just loose the screw and fix the mirror on the handlebar, then tighten the screw.Number: BM-45Lens size: 45mmWeight: 35 gramsApplicable diameter: Inner diameter 16-25.4mmTightening torque: 8.5N·mOther: Allen key (3mm) includedNote : only include 1 pc mirror / order, not a pair .FeatureHeavy duty design is light and fully adjustable. The scratch resistant mirror has a wide anglefor easy viewing and is easy to install. Left side model available in the US.Tips : The mirror is Conves Mirror , so have the wide angle for rear viewing .Name: Bike MirrorsIdeal for most bikes such as road bike, mountain bike, bmx, e-bike, motorcycle, cruiser bike, electric scooter, etcWhat frightens cyclists most is looking back while riding. With our rear view mirror, you won’ t have to look back anymore. So you can enjoy a comfortable and relax riding, anytime and anywhere.