Description : Practical and durable home using product. Increase oxygen levels, lower CO2 and raise PH. It is an important instrument to successfully keep aquatic fish for respiration process. Durable, washable and sintered by high temperature. Creates bubbles in fish tank while attached to an air pump(air pump is not included). Creates water currents and dazzling underwater scenes. Perfect accessories for better life. Green resin, non-toxic, safe for use. Specifications : Quantity : 1pc Material : Resin Size : approx. 7*7*5cm/2.75*2.75*1.96'' Color : as picture shown Package Includes : 1 x Fish Tank Decor Can ship worldwide too but please let me know first if you want to ship to countries not the USA as the prices and delivery time can be different.