Convenient and clear: 3-inch glass lens, 6061 Billet Aluminium Light Weight Bar End Mirrors, give you a wider, high-definition view, making it easy to see oncoming cars and obstacles. Flexible and Adjustable: The universal ball joint can be rotated 360 degrees, allowing you to freely adjust it up and down or sideways for the best viewing angle. High quality: Plastic mirror housing and Aluminium mirror stem, sturdy and durable, IP65 waterproof, rust resistant, offering a clear view and not easy to crack or break Easy to install: A 6 mm hexagonal key is provided. The two screws behind the mirror allow precise adjustment of the mirror's strength so that it always stays firmly in place. Wide application: Universal round mirrors fit the handlebars of motorbikes with an external diameter of 22 mm Mirror Diameter: 7.7cm or 3inch Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.