Feature:1. Convex Mirror: The bike mirror adopts convex mirror design to provide a wider field of vision, clearly see the road conditions behind, and avoid accidents.2. 360 Rotation: The rearview mirror supports 360 degree rotation adjustment, and can adjust the direction as needed to help you observe back.3. Applicable Size: The bike rearview mirror is applicable to a flat bar with an inner diameter of 0.710.86in (1822mm), and has a wide range of applications.4. Wide Application: Including a pair of rearview mirrors, which can be installed on electric bikes, city bikes, mountain bikes, convenient and practical.5. Durable Materials: The rearview mirror is made of excellent plastic and resin materials, with good toughness, wear resistance and corrosion resistance.Specification:Item Type: Bike Rearview MirrorMaterial: Plastic, ResinApplicable Bar Inner Diameter: Approx. 18-22mm or 0.71-0.86inSize: Approx. 11.5 x 13cm or 4.5 x 5.1inMirror Diameter: Approx. 7cm or 2.8in.Package List:2 x Rearview Mirrors2 x Hex WrenchesNote:Suitable for flat bars, not for suspend bars.