Experience an extra measure of security when you ride with this adjustable, wide-view mirror. The High Definition Glass Lens provides a superior view of approaching vehicles. Quick, simple, attachment to either left or right, flat or drop bar end. Mounts to hybrid, commuter, road, mountain or recumbent bikes. - Fits 14.8 to 22.5mm interior diameter flat or drop bar ends - Quick, simple, attachment to either left or right, flat or drop bar end - 2.75-inch, high-definition glass, wide-view mirror provides a superior view of approaching vehicles - Nylon frame and body - Round mirror rotates 360 degrees