Designed to provide coverage and protection from and trail debris or possible side impact below the doors. The rocker guards are constructed from .090 Aluminum, and powder coated black for corrosion resistance. The rocker guard set is designed to fit perfectly with the Rock-Slide Engineering Step Sliders for the Wangler JL 4 Door vehicle. Attaches to the sheet metal with the included 1/4" nutserts. Learn More