THE MATERIAL IS COTTON CARDBOARD. IT CAN REMOVE THE ODOR OF THE AIR, REFRESH THE MIND AND ELIMINATE FATIGUE. THE FRAGRANCE LASTS FOR A LONG TIME, HAS POWERFUL DEODORIZING FUNCTION AND IS FULL OF REFRESHING NATURAL FEELING. IT CAN BE SUSPENDED IN CABS, BEDROOMS, BATHROOMS AND OTHER PLACES OF VARIOUS VEHICLES, AND CAN EFFECTIVELY ELIMINATE THE POLLUTANTS IN THE AIR. PAPER AIR FRESHENERS ARE AVAILABLE IN STANDARD OR CUSTOM SHAPES TO MATCH THE LOOK YOU WANT YOUR PROMOTIONAL PRODUCT TO SHOW! 3" L X 3" W