CROSSOVER practically all applications. The surfaces are matt, rough- polished or relief with various slip-resistance qualities up to class R11. CROSSOVER highlights the visual quality of volcanic rock and offers all the practical advantages of modern ceramics. This wall and floor concept in beige, grey and anthracite is versatile and functional and can be used for OS6M grey · matt OS6L grey · rough polished OS6R grey · relief OS1M beige · matt OS1L beige · rough polished OS1R beige · relief