BUBBLER DECORATION - This ECO-Friendly resin material non-toxic, non-pollutant also it won't fade when the time goes long.Suitable for aquarium, fish tank and circulation system.Crocodile bubble decorations will creates water currents and dazzling underwater scenes. MAKE AIR BUBBLE - Connect to the air pump to increase oxygen lower CO2 .Create abundant small bubbles(Air pump is NOT included). Increase the natural scenery in your fish tank makes your fish vitality. SIMPLE MAINTENANCE - Approximately measures 9.6” (length) x 4.5” (width) x 2.6” (height), this will fit easily in any aquarium. this crocodile air bubbler ornament will achieve that ideal aquascape you have been dreaming about. OPTIMIZED DESIGN - Crafted with great attention to detail，Resin material is stable so it can stand steadily. No special maintenance requirements and is easy to clean. WIDE USING RANGE: Can be used for aquarium landscaping, photography props and make your aquarium vividly ,add to natural color.Change your aquarium into a beautiful scenery,create a natural and natural living environment.