Designed for use in combination with the Rugged Ridge All Terrain Flat Flares for JK, PN: 11720.10, these wheel well liners help keep mud and debris out of the engine compartment and provide a clean finished look. Constructed from durable HDPE, the wheel liners replace the factory wheel well liners that must be removed when running aftermarket flares. Simple bolt in installation, no cutting or drilling required. Kit includes all four wheel well liners and mounting hardware.