Inspired by the ‘subway tiles’ that are currently popular on subway networks in Europe and America, Roman presents the concept through the dTube collection. There are 4 choices of modern solid colors, namely dTube White W63801R, dTube Cream W63802R, dTube Cafe W63803R, and dTube Black W63804R. This 30×60 cm collection is recommended to be installed horizontally to get the perfect effect of the beveled edge checkerboard arrangement. In addition, the grout filling application must use the grout color printed on each of these pieces. dTube with a glossy surface is an attractive choice to be applied to the walls of cafes, restaurants, foyer, shops, kitchen backsplashes, bathrooms, or other interiors that want a contemporary minimalist theme.