A set of smoother-edged muddy road tiles for a more wintery look, suited for the winter version of the Rural Plains room. Hence the "W" in the name, in case you were curious. Sized so that you shouldn't have to fiddle with them too much to get them to line up. Whichever piece is in the icon is the one you're lookin' at, so be sure to TRY IT before committing the credits to it.