Compact dimensions: 19 cm x 6.5 cm x 4.5 cm (7.48 in x 2.56 in x 1.77 in). This handlebar mounted convex mirror is unobtrusive yet effective, providing a clear rear view without taking up space on your handlebars. Wide compatibility: Fits handlebars with diameters from 22 mm to 32 mm. Suitable for electric bikes and shared bikes. A practical addition for any cyclist looking to improve awareness and safety. Adjustable viewing angles: The flexible support rod allows 360degree rotation and multiangle adjustments, so you can set the viewing angle to the most comfortable and useful position for your ride. Material: Made from metal, this rearview mirror is built to withstand daily use while maintaining its functionality and appearance over time. Use scenarios: City commuting and lane changes: Improve rear visibility in traffic, making lane changes and overtakes safer without excessive neck twisting. Electric bikes and shared bikes: Compatible with a range of handlebars, including those used on ebikes and rental fleets. Tight spaces and parking: Use the 360degree rotation to check blind spots while maneuvering in narrow streets, through crowded bike racks, or when reversing near walls and parked cars.