This is the Medium Cytherea Table Acropora measuring 8x7.5x3.5 inches high. These are made of a durable, flexible and nearly unbreakable UV stable polyurethane composite safe for all aquariums. Many colors to choose from. Pictured is the aqua color. Thank You and enjoy the finest artificial corals ! Call or email us anytime with any questions at 1-888-637-6598 or oceanaquaria@gmail.com