I have some extra items for sale because I bought more than I needed. I'm selling them as "single items" and "sets of two," so please be careful when purchasing. Simply apply it to the wiper rubber. Eliminates annoying chattering. Fluorine coats the surface of the wiper rubber. Reduces streaking. Please understand that these items are stored at home and will be shipped in simple packaging. ※ This is for a single item. #Wiper #Car #ChatterStopper