- High quality HD convex glass: automotive grade convex glass provides a wide, clear view of traffic behind you, helping you keep safe without turning your head. Ideal for city driving and on country roads. - Universal fit and easy installation: fits handlebars with inner diameter 14-24 mm, suitable for both flat and racing handlebars. Quick to install with the included 4 mm hex key and a robust expansion plug. - Durable construction: made from PA6 with 30% fiberglass content and a high‑impact resistant frame. A stainless steel screw (304) ensures a durable and secure attachment to the handlebars. - Flexible adjustable for optimal viewing: the mirror rotates 360 degrees and tilts 180 degrees, allowing you to set the perfect viewing angle and improve security by better capturing your surroundings. - Use scenarios: for city commuting with frequent traffic checks; on rural or winding roads where frequent head turns are impractical; during group rides or urban cycling when rear visibility is important.