-Hydrophobic film prevents water vapor and moisture from accumulating on the mirror -Allows water to drain from the mirror surface during precipitation, significantly improving visibilityINSTALLATION INSTRUCTIONS: Clean the mirror with a damp cloth No. 1 Dry with a napkin No. 2 Remove dust with a cloth or with the "Dust-absorber" sticker Attach the film with layer 1 facing the mirror, you can fix this position from above with a guide sticker. gently peel off piece No. 1 . Stick the film, while removing the remaining protection to avoid dirt, air bubbles are best removed with the included spatula during sticking. Gently peel off masking layer 2. -135x95mm - 2pcs