KEWAYO Cycling Riding Bicycle Bike Rear View Mirror, Convex Reflector Mirror With Wide Angle Lens and Adjustable Universal Silicone Handle For Road Bike Mountain Bike (1 PCS) Wide view : Mirror diameter is approx 2.95 Inch, the converx-plane can expand the field of vision; the handle of the mirror is adjustable to any angle, 360 degree rotate. Easily install and remove: Mounting bracket is retractable silicon rubber belt, can be easily install even with no tools. Convenient use: Light weight, large lens, and is adjustable through the movement of all three axes. Fits most bike: Retractable rubber belt suitable for the diameter of the pipe approx 0.59 to 1.36 Inch, Can be mounted on handlebars, handle stems, bar ends, frames, etc. Durable and scratch resistant: glass mirror, silicon rubber backing plate and handle; aware of your surroundings with this bicycle mirror, make you safer when riding on the road.