The oil finish applied to the Karndean Grey Oiled Oak Luxury Vinyl Collection gives the planks a smooth finish, while the grain detailing adds a streamlined look to complement contemporary spaces. This on-trend gray tone will give any room in your home an updated feel in a waterproof format. Korlok Reserve features a patented and proven 2G locking system specifically designed for an easy installation. The Korlok Reserve range has a lifetime warranty.