Bicycle Mirrors: Our upgraded bike mirror are designed to fit handlebars from 21 mm to 32 mm (0.83 in- 1.26 in). With an extended mirror stem, you can enjoy a wider field of view while riding on the road, effectively reducing blind spots by up to 30%. Safety Crystal Ultra-HD Convex Anti-Glare Glass Rearview Mirror: Our bicycle rear-view mirror uses safety crystal ultra-high-definition anti-glare convex glass, which can provide you with a wide angle, a wider field of view, and avoid strong light irritating your eyes. The 360° rotation and 60° reversal functions can eliminate blind spots and provide a wider field of view. Use our upgraded bike mirrors to increase your field of vision and eliminate glare, ensuring a safer ride. Easy to Install: Mirrors offers a simplified installation process. Simply adjust the angle of the base and bike mirror, and tighten the screws using the included wrench. More Safe and Reliable: The upgraded bicycle mirror adopts a high-impact frame and high-hardness base clip made of PP+ABS material. Sturdy construction ensures the bike mirror won't wobble, crack or crack. This ensures safe and long-lasting use, making it an excellent addition to any cyclist's gear. Wide Application: Our bike mirrors are suitable for handlebars with diameters between 21-32 mm (0.83 inches-1.26 inches), including electric bicycles, mountain bikes, scooters, BMX, electric scooters And use within designated handlebars on any bike to increase your riding pleasure. Item is New. Comes with 1 left side mirror and 1 right side mirror. Mounting hardware and instructions included. Sorry, no returns on this item. Ships from CT. Email me with questions.