Description : Fitment : Compatible with CHEVY Silverado GMC Sierra 1500 2019 2020 2021 2022 Package included : 6 × Black Window Pillar Posts Key Features : Luxurious trims dramatically enhance your vehicle's appearance and make it scratch-resistant. The posts with mirror polishing process can give your vehicle a spectacular reflection, stunning and gorgeous. Automotive grade PC material with high quality makes it perfect fit in use. UV coating prevents fading and makes it anti-rust even under extreme weather conditions. Come with self-adhesive tape on the back for easy and fast installation. No drilling or cutting required, and can be removed without residue if needed. (Note?If their surface have scratched up,It is normal because When you use the item to install in your car Need to peel off the white protective film then It`s surface is smooth glossy black) Installation method : 1.Use alcohol or agent to clean the installation position, make sure has no grease, wax or dust etc. on it 2.Please ensure the installation position can be completely fit the case before install. 3.Rive the strong double-sided adhesive of the back, please heating the adhesive part via the hair dryer or lighter before sticking on. 4.According to the comparison stick it up and press about 1-2 minutes . 5.Do not wash your car in 24hours, the adhesive should be fixed after 12 hours .