The aquarium air stone piece is designed to provide a consistent flow of fine bubbles, enhancing the oxygen levels in your fish tank. This household aquarium diffuser disc is easy to install and can be used in a variety of tank sizes. Its round base ensures stability, while the fine bubbles it produces create a soothing and visually appealing effect in your aquarium. Features -Color:White -Material:Ceramic -Size:6.80X6.80X3.40cm/2.67X2.67X1.34in -Efficient oxygenation: the aquarium air bubbler ensures efficient oxygenation, promoting a healthy and thriving environment for your fish -Quiet functioning: with advanced noise reduction technology, this air stone operates quietly, ensuring a calm and undisturbed aquarium setting -Fine build: the air stone is built to last, offering reliable performance over extended periods -Easy to install: the fish tank air stone is designed for easy installation, allowing users to set it up quickly without any knowledge -Wide range of use: suitable for various aquarium sizes, this bubbler disc provides effective oxygenation for both small and large fish tanks Package list: 2 tank oxygen bubble stone