These Duraflex Circuit Window Scoop Louvers are great for car enthusiasts who want to upgrade the look of their 2010 - 2014 Ford Mustang. They are perfect for both daily driving and car shows. The 2 - piece set is made of FRP material, which gives it a good balance of lightness and durability. Although the specific size and weight aren't given, you can expect a well - crafted product that will fit your Mustang just right.