GXHUANG Cycling Safe Bike Helmet/Handle Mirror The attachment pads are universal so you know it will be compatible with your bike helmet! Provides full undistorted field of view around you with a mirror surface of just 1.18 X 1.75 inches which means unlike bulky products your forward view is not obstructed! 360 DEGREE RANGE OF ADJUSTMENT means you can place the mirror exactly where you want it so it is perfect to give yourself the best field of view! EXTREMELY LIGHT WEIGHT & ROBUST - At only 20 grams and made from aluminum and plastic construction makes this superior bike helmet mirror tough. It won't break!