Material: Made of resin. Eco-friendly resin, non-toxic, harmless to fish and water. Will not fade over time. Beautiful Design: Arched deck is designed to lay evenly in water. This arched garden pavilion gives people a sense of the natural environment and turns your fish tank into a beautiful landscape. Durable and stable: the bottom of the decoration is flat and the weight is enough to stabilize it in a position in the aquarium. You just need to choose a suitable location without any modification. Visual enjoyment: the cave offers your fish a place to rest. It can create a realistic world for your fish tank and bring you visual enjoyment. Usage: A great place for small fish to entertain, cultivate or hide. It is suitable for all aquariums. Size: 28147.5cm. Number of shipments: 1 pcs.