Quality Material and Craftsmanship 3D scanned to ensure OEM comparable fitment, spot-on paint match makes these duckbills look like they are from the factory yet with a bit more aggressiveness! Easy Installation Please make sure to thoroughly clean the surface before installation using rubbing alcohol and a microfiber cloth. This will create a stronger bond for the supplied 3M tape. You will get the best result when installing in 60+ degree weather. Allow the duckbill to sit for at least 24 hours for a stronger bond.