Fitment: Polaris Pro-fit cages. Fully adjustable and serviceable. Independent convex safety glass provides a wide viewing angle and can be replaced without having to replace the whole mirror. Features: Cast aluminum housing withstands the most extreme punishment, Weather-sealed caps keep out debris, Rubber vibration isolator means a clear image and keeps the mirror from sliding, Notched Delrin detents allow the mirror to fold in when hit and be returned to its original position in one move.