Self adhesive back for easy installation.Dummy antenna make a great decoration for your beloved car.Made of the plastic material, is designed with shark fin shape.Suitable for all Cars and you can stick it on the top of your car.Make your car different from other cars.Note: 1. Ensure installation in a good weather condition.2. Clean surface with rubbing alcohol or prep solvent and allow to dry completely.3. Heating the double-sided tape with a lighter to increase viscosity, prevent product shedding.4. Allow to set for 24 hours.