Frost King brand heavy gauge aluminum with grey vinyl weatherseal. Door sweep automatically raises up when the door is opened and lowers back into place when the door is closed. Installs on the outside of exterior doors. When door is closed the vinyl sweep seals out drafts, rain, and dust. When door is opened the vinyl sweep lifts, protecting carpet and floor coverings from snagging, scraping, or dirtying floor surface. Complete with screws and nylon stop roller. Fits 1 average door.