Easy to install,it will not damage any painting on your car body. Professional installation is highly recommended, make you get better enjoyment. It can give your car a more aggressive racing look, show your characteristic when you driving MATERIAL :- Exterior Accessories are made of Lightweight PP materials and elegant appearance gives excellent rigidity and durability. For good adhesion, avoid high speed driving and water or fog in 3 days after installation BENEFIT:- Increase the car stability, improved the driving safety, reduce the fuel consumption