These Duraflex GTX side skirts are perfect for car enthusiasts who want to upgrade the look of their 1979 - 1993 Ford Mustang. Whether you're driving on the streets or showing off at a car show, these side skirts will make your car stand out. They are made of FRP material which is strong and durable. Although the specific size and weight aren't given, you can expect a well - crafted 2 - piece set that will fit your Ford Mustang perfectly. Professional installation is needed to ensure a seamless fit.