It sounds like you're referring to a product typically called*Car Rearview Mirror Protective Film – Anti-Fog & Waterproof**, usually sold as a **set of 2 pieces**.
- Safe driving: this car rearview mirror film has good transmittance, anti-fog, anti-glare, waterproof, rainproof and other functions, providing you with security and clear vision, ensures the safety of driving in rainy days, make your life safe and convenient
- Lasting to use: made of PET protective films and nano adhesive layer, water droplets can spread quickly, no dew condensation and good transparency, can prevent strong light reflection, reduce dazzle light, relax visual fatigue, see more clearly even for strong light at night
*Installation Tips:
- Clean the mirror thoroughly with provided wipes.
- Dry completely.
- Peel off the protective backing from the film.
- Align and stick the film to the mirror.
- Smooth out any bubbles with a card or cloth.
Pro Tips:
* Works best on clean, flat mirror surfaces.
* Replace after several months if the coating wears off.
* Not ideal for heavily curved mirrors unless specifically designed to fit.
