ABS Rear Window Louver (6064) by Willpak®. Material: ABS Plastic. Full Louver Across Window, Flat Hardware. Complete the retro styling of your modern vehicle! These louvers will increase your privacy while keeping your interior cooler. Made of strong ABS plastic, they're highly resistant to damage and heat. The louvers are super easy to install with the stainless steel hardware (included in your kit). May be left unpainted, or painted in color of your choice, in which case, professional painting is recommended.