Nimeka The door guard sticks to the doors and when opening the door, the guard will hit instead of the door and prevent the door from taking a hit. These guards use a strong adhesive and will stick to the doors for a long time. Instructions: clean prior to application. Make sure is dry and dust free. Remove film from adhesive and then attach the door guard to the door. See product images for more detail about where to apply the guard. Product features:- stylish and sleek door guards for cars and other vehicles. Protects doors while opening them. Guard will prevent door from hitting things while opening. Strong adhesive - guard sticks to door for long time.