"Rock Slide Engineering Next Gen Step Sliders were designed to be a true rock slider while incorporating a functional step that deploys when the door is opened. These step sliders provide a drop step that swings down when the doors open, and then will tuck back under the vehicle when the doors are shut. The Rock Slide Engineering Next Gen Step Sliders are constructed from 3/16"" steel and are finished in a textured black powdercoat to protect against scratches and corrosion. These step sliders are powered by a single heavy-duty motor, making the operation quiet and maintenance free, and providing a full 12"" drop from the top slider rails. Additionally, these step sliders are built for mild to moderate trails and can act as rocker protection while off-road. The Rock Slide Engineering Next Gen Step Sliders will come with vehicle specific mounting hardware and most installations require no drilling. | Rock Slide Engineering Gen 3 Step Sliders - Bronco 4-Door Kit BD-SS-300-BR4"