On a rainy day, rain blurs the rear view mirror and the rear road conditions cannot be observed clearly, which make driving very dangerous. The rainproof blades help to block the rain, offering you a more clear rear view and safer driving. On a sunny day, the blades reduce the dust attached to the rearview mirror. 2Pcs rainproof blades with adhesive tape on the back, easy to install on dual sides of car's rear view mirror. Very flexible, can be bent to suit most of the vehicle models as long as the mirror is around 18cm wide. They are made of translucent PVC, match with any color mirror.