MADE OF PLASTIC MATERIAL - Made of high quality plastic material, non-toxic and harmless, will not fade or change water color when soaked in water. Colorful landscapes add vitality to your fish. DECORATE YOUR AQUARIUM - The realistic sunken ship decorations, painted with detail and color, enhance the natural scenery in your aquarium. Impress guests and give realistic feeling and excitement! UPGRADE DESIGN - Crafted with great attention to detail, high quality material is sturdy so it can stand stably. No special maintenance requirements and easy to clean, VALUE - Realistic shipwreck model to create a natural living environment for fish, can be connected to the air pump to create a bubble effect underwater (air pump NOT included).