BicycleStore&reg; 1 Pcs Adjustable Rotating Flexibility Bicycle Handlebar Rear View Mirror Cycling MTB Electric Cars Rectangle Reflector Mirror Rearview Wide Angle Horizon Aluminium Alloy For 22mm Black Large Mirror: This bike rear view mirror provides a wider field of vision of the road behind, never worried about can not covering the view behinds you when riding; Size: length:4.7''/125mm, width: 2"/50mm High Quality: Uneasy to generate scratches and lose the color,stronger and glossy Ideal for MTB Flat Bars: Applies to the most mountain bikes, road bikes, fixed gear bikes and electric bikes bicycles; suitable handlebar diameter is about 21-23mm Easy Installation: It only takes a few minutes to install and adjust the best angle Flexible Adjustable: Flexible rotation for easily adjusting to your viewing angle for maximum coverage