Included INTEOS workstation sink accessories: Wood Cutting Board, Large Colander and Accessory Holder Optional INTEOS workstation sink accessories: INTEOS 30 Grid (443344), Dish Rack (443342), Small Colander (443340), Large Tray (443339) and Small Tray (443338) Store accessories under the sink with the INTEOS Storage Organizer Bag XL (527670) Silgranit is made of quartz sand, the hardest element of natural granite making it long lasting and durable Easy-to-clean low maintenance material has a non-porous, smooth stone surface, effortlessly remove scuff marks