Use these rear fenders when you want to upgrade the look of your 2003 - 2012 Mercedes SL Class R230. They are perfect for car enthusiasts who love to customize their vehicles and make them stand out. The fenders are made of FRP material, which is lightweight yet strong. While specific size and weight details aren't given, you can expect them to fit your Mercedes SL Class R230 properly as they are designed for this model range. Professional installation is needed to ensure the best results.