- YOUR SAFETY FIRST: This innovative bike rearview mirror provides clear visibility of the road behind you, significantly reducing the risk of accidents while cycling. - FULL ANGULAR ADJUSTMENT: The mirror rotates 360°, allowing for maximum visibility and easy angle adjustments. Installation is straightforward—just remember to tighten the screw after adjusting. - LONG ARM FOR BETTER COVERAGE: Featuring an environmentally-friendly long arm made of stainless steel, this mirror offers an improved horizon view. It is compatible with bicycle handlebars measuring 21-25 mm. - STURDY AND DURABLE: Constructed with an ABS optical frame and aluminum alloy, this mirror is designed to withstand minor bumps and impacts, ensuring lasting performance. Use scenarios: 1. Commute safely to work by easily monitoring traffic behind you. 2. Enjoy leisurely rides in the park while staying aware of your surroundings. 3. Enhance your cycling experience during group rides by keeping track of fellow cyclists.