Volcano Size-8.5*5.5(cm), the hand-painted volcano is made of resin which is safe, non-toxic, eco-friendly and completely harmless to your fish. The dreamy glow of the 180-degree rotating multi-color LED projector adds an additional beautiful effect of overflowing lava, and the projector adopts waterproof and waterproof design, safe and convenient. Easy to install, enhance the aesthetic appeal of your aquarium with this exciting and unique aquarium decoration. Adds beneficial bubbles to aquarium water, helps oxygenate the water and improves the living conditions of your fish. Lava stones can be placed with bubble stones, spotlights. The package contains a single volcanic stone and does not contain bubble stones, spotlights or water pumps.