assurance tested, more responsive, less expensive, easier to install. Change exterior, decorate your car in a unique and fashion way! Enjoy the super cool and exquisite appearance of your car after installing. Prevent the of your car from scratches, dust, keeping it new. Self-adhesive tape on back, just stick on position, no drilling, no damage. Reliable and -resistance for long time use. Name:Rear Side Window Louver. ( Never Used Or Installed) Type:Rear Side Window Color:Carbon fiber pattern Material: plastic Fit:For 2017-2021 Installation Steps: 1. Wipe the clean. 2. Compare the installation position. 3. Tear off the adhesive tape to paste, and press firmly. Package Contents: 1pair x Rear Side Window Louver Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.