With this motorcycle mirror mount , you can install more device to your motorcycle ROTATION - You can rotate the small bar as you wish Universal Use, the small bar diameter is 22mm(7/8 inch), you can install most phone mount on it Why : Some handlebar of motorcycle or e-bike have no place to install the cycling device, this Extension mount will work it out. As we known, the handlebar of some motorcycle or e-bike is Crowding, Even have no place to install a phone mount, if it happen have a 10mm bolt hole, mount will help.With this Motorcycle Mirror Mount adapter , you can install more handlebar device to your motorcycle. eg Handlebar Phone mount, some other cycling device colour:black Material:metal Package Contents: 2 * Motorcycle Mirror Extender Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.