Reinforced elastomer liner for door trim made from VELVEX to prolong the life of your door cards.Die cut on press tools that make the original door cards. Each hole for door locks, window winders, door handles, speaker holes are precision cut to fit perfectly over the door. Not only does the waterproof VELVEX stop damp or water leaks warping the door cards it stops on scratching of the paint work. This is the best Reinforced Elastomer on the market and will prolong the interior trim panels in your car. 1 kit does both doors. Sold as a pair.