dRavelin 30×60 cm is Roman’s latest interlock collection that can connect on both sides, aiming to disguise the grout boundaries. Installation of this product on the outer wall in the garden area, fence, foyer, and exterior building walls form the outer area without being disturbed by grout. Another advantage of this collection is that it is easy to maintain and does not need to be coated and not mossy. dRavelin has a structured surface, consisting of rectangular pieces of stone that gives it a natural look but still feels modern. Through Digital Tecnica technology, this collection comes with a variety of designs and tonality between pieces, consisting of 3 color choices: dRavelin Mountain GL638068, dRavelin Savanna GL638069, and dRavelin Tundra GL638070.