Glasses mirror is useful for being aware of your surroundings. That taxi driver driving too close to your back wheel or a cyclist about to perform a dangerous overtaking manoeuvre are all easier to spot. This bike mirror provides you wide angle and high definition. It is super clear and fully adjustable. You can adjust it to your desire direction. 360 -degree angle adjustable rotation: Adjust the angle according to the usage situation. When you are riding outdoors, this handlebar will provide you with a broad and uninterrupted vision. Safe cycling: Bicycle mirrors can be installed on glasses and helmets to help understand the surrounding environment. Taxi drivers are too close to your rear wheels, or people who ride bicycles to perform dangerous overtaking operations are more likely to be discovered. Ultra -light: This bicycle glasses only weigh 12 grams, small and light, so that you will ride a long -distance ride without an additional burden. GM design: Bicycle rearview mirror is suitable for most cycling goggles. The size is 92*41*30 mm (3.62*1.61*1.18 inches). Therefore, you can see more rear than others to ensure your cycling safety. Materials: Made of solid and durable acrylic and mirror materials, high impact framework. Specifications: Product name: glasses bracket rearview mirror Material: Acrylic Size: 92x30x41mm Color: as shown in the figure Package Included:1x glasses bracket rearview mirror Notes: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you 2. Please allow 0.1-2cm measuring deviation due to manual measurement.