This 4 piece (right and left side) stainless steel Lower Door Rocker Set is made from premium stainless steel and polished for a bright mirror finish. It installs at the bottom edge of the door. The trim comes with 3M adhesive backing and is laser-cut for that perfect fit. All you need to do for installation is just clean the vehicles surface, remove the protective liner and stick. The trim requires no drilling or cutting, and can safely be removed without damaging the vehicle's exterior.