Easy to install and remove by a adjustable belt. 360 degree rotate help you watch every direction of you back. Compatible with 15-35mm internal diameter of the handlebar. You can install it on the left or right, sometimes treat it as a mirror to check your face or clothe. Fits most handlebars, mountain bike, road bikes etc.
Material: Plastic + Glass
Size: as shown
Style: Oval, Round
Suitable for Handlebar diameter : about 15-35mm
Package included: 1PC Bicycle rearview mirror