It is suitable for use in all household double glazing and glass up to 5-30mm thick. it is not compatible with exterior, plaza windows. package content1 magnetic glass wiper with magnetic double-sided magnetic wiper, put an end to the risk of cold and falling, without hanging out, while the felts on the product clean the glass surface with water and detergent, while the plastic scraping apparatus removes water and thus easily cleans your glasses in a much shorter time. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.