This is a 2-piece, driver and passenger-side, door panel protector set.  These are laser-cut from brushed-finish stainless steel.

Most people's feet hit their door panel when they enter the vehicle.  Over time, this can leave some ugly marks on your door.  Here is the solution.  These are stainless steel, so they are tougher than you factory door panel.  They are also easily cleaned up in the event you hit them with your feet over and over again, which is likely to happen.  These protect your door panels, they look good, and the price is better than the competition's.

These pieces attach with pre-applied 3M automotive double-sided tape.  Just make sure to prep the door panels by removing and kind of sealant such as Armor-All, and then clean with alcohol, and apply 3M adhesive promoter (also supplied).  Once the promoter dries, peel the adhesive liner off, and stick into place.