Bolts on the vehicle chassis, with no modification required. Prevents damage to vehicle sills and chassis when crossing over large obstacles. Helps prevent ''gravel rash'' to the vehicles paint work. Features 2 Hi-Lift jacking points per side. Rock Sliders follow the contours of the vehicle and run the full body length between the front and rear wheel. Manufactured from heavy gauge tubular and plate steel. Powder coated black for protection from the elements. Installation hardware and fitting instructions included.