The Underwater Treasures Battleship Ruins is a beautifully hand-crafted and painted model that is perfect for any aquarium. Made of high-quality materials, this model is safe for both freshwater and saltwater environments. With its small size, it is easy to store and transport as well as to set up and use. The large half measures 16 inches long by 6. 5 inches wide and 11 inches high, making it ideal for large fish or groups of smaller fish.