Ocean Aquaria corals are of the finest and most detailed artificial corals on the market. They are made of a highly durable and nearly unbreakable UV resistant Polyurethane. The colors resist fading. The corals can be scrubbed with a vegetable brush for cleaning. Best of all, they're made in the USA with similar materials used in theme parks,zoos, and public aquariums. We also manufacture custom coral reef inserts,overflow box covers, and any size coral inserts. We have the best and most talented artisans in the industry. See for yourself, You be the judge...Let Ocean Aquaria build your next custom coral reef insert. Call 1-888-637-6598   or email us at oceanaquaria1@aol.com