The design is based on black and white, so it is suitable for any kind of toilet.Can adjust the strength of the fragrance by raising or lowering the filter paper.How to use:Peel off along the perforation.Push the outer cap back and remove it.Turn it counterclockwise.Place it on a flat surface and slowly pull it up.Close the outer cap tightly.. Ingredient: Amino acid-based deodorant, perfume, surfactant (nonionic, anionic), pigment