Increases your field of view, reduces blind spots, and minimizes mirror vibration and blurring. Its rectangular, semi-convex shape offers a panoramic perspective for less visual distortion. A built-in, vibration-isolating attachment and a rubber-cushioned frame virtually eliminates mirror shake from idling motors and rough trails. Spring tension ball mount rotates 360° and tilts 15° for custom positioning. Fast, simple installation. Ambidextrous mount. Fits tubes up to 1" diameter.