Rocket Drop Down Handlebar Mirror

Works with all road handlebars by attaching to the bar end. Allows you to see traffic from behind without having to look over your shoulder.  2 ounces per mirror. SAFETY: Keep yourself confident with safe equipment by using High Definition Mirrors. VISIBILITY: No more looking over your shoulder and wondering if the vehicle approaching is too close for comfort with 360 degree adjustability . Give yourself time to react.   EASY INSTALL: Remove the end cap  & then place in bar with the mirror's male insert and tighten.  Fits inside handlebar 15mm ~23mm. RELIABILITY: Whether out bicycling on Sunday or commuting to work - failure isn't an option. When other brands rattle and spin out of position, BiKASE mirrors hold true. Compact:  Mirror dimensions