Auto Add On CV0076 Chevy Silverado Crewcab Pick Up Truck Window Deflector Rain Guard Visor 4 Pcs Chrome For Silverado crewcab 2007-2013 4 full doors model. Stick-on style, mounted on to outside window frame. Made with abs material with triple chrome plated finish. Abs material has been widenly applied on automotive, aircraft and construction industries due to its durable and heat resistant characters. Surface preparation is key for successful installation. Without complete clean surface, no visor will survive. Although visor can be diy installation, we still recommend professional installer to handle. Installation instruction is not included. Abs visor can be easly stick on to position of outside window frame. The surface where 3m double side tape attached must be completely clean without any dust, grease, oil, or chemical. Image shown is for in-channel appearance, not exact application of vehicle.