Description: Handlebar End Bike Mirror Cycling Riding Mirror Back Rear View Rearview Mirrors Bicycle Accessories For Mountain Road Bike MTB Bullet Points: 1360Universal Adjustment Buckle: You can adjust the mirror to your position, which is more convenient to use and the viewing angle is more comfortable. 2Wide Compatibility: The bar end bike mirror fits 17.4~22 mm inside diameter of the handlebar (Open Ended Grips or Cut a Hole). And it is compatible with 90% of mountain bikes and road bikes. 3Universal Design: The bar end bike mirror can be installed on both left and right, and top of the handlebar and below the handlebar. 4Multiple Purposes: The bar end bike mirror is suitable for all types of bikes, including road bikes, MTB, E-bikes and etc. 5mm/0.20in(about) hex key required for installation. 5Clear Convex Mirror: The mirror surface is designed with high-definition glass lenses to improve cycling safety. Strengthen the PC bracket: higher hardness is not easy to be broken, anti-aging. Features: Unbreakableclearstainless-steellensforsafecycling. High-impactdurableframe. Idealforroadbikes,mountainbikes,E-bikes,hybridbikes,citybikes,andyourbike! 360adjustable,applicableforbothleftandright. Specifications: Specifications(about): Lens: unbreakable lens Base: eco-friendly high impact nylon fiber Application: FLAT OR DROP handlebar inside diameter 17-22mm/0.67-0.87in Assembly: Hex key 5mm/0.20in Package Included: 1*Bike Bar End Mirror (Note: only include 1 mirror / not 1 pair)