Stiltjes ekgolv is not as usual hardwood floors. The surface is machined so that each plank is unique. Like our most beautiful stones. We have developed wooden floors that will match our most beautiful stones. Four colors we have selected Castle Dark, Castle Light, Slate Gray and Pale Gray. All equally beautiful. On the pictures an absolutely wonderful home with the floor Castle Dark. I've said it before and say it again. Style has amazing customers.