3M™ Rocker Protector Pouch is a resilient under-the-paint protective coating designed to help protect rocker panels and stone-throw areas of automobiles.The specially-engineered formula matches a wide variety of textures on factory-applied coatings. Use this pouch with 3M™ Accuspray™ Spray Gun Kit HGP (sold separately) to access hard-to-reach areas and ensure uniform application.