Some stick-on sets include a push pin to hold the end of the deflector securely.
- Clean the door frame with the alcohol wipe and let it dry.
- Dry-fit the deflector to check the position and where the push pin will go.
- Fit the push pin as shown in the instructions supplied with your set.
- Peel back the tape backing, line up the deflector and press firmly along its full length.
- Leave the adhesive to cure for 48–72 hours before washing the car.