Want to add a bit more shine to your Thunderbird? Turn some heads with our Luxury FX Polished Window Sill Accent! Our Luxury FX items are made from durable Automotive Grade Stainless Steel, polished for a mirror shine, and perfectly engineered to fit your Ford Thunderbird like it came from the factory that way! Installation is fast and simple: Every piece is packaged with pre-positioned Automotive Grade 3M Adhesive, ensuring that our durable trim pieces will adhere firmly for the life of your vehicle.