Our aquarium oxygen diffuser pieces are suitable for maintaining a healthy aquatic environment. These air stones for aquariums are designed to produce fine bubbles, enhancing the oxygen levels in your fish tank. The small bubble stone pieces are easy to install; just connect them pump and place them in your aquarium. Enjoy the of improved water circulation and vibrant aquatic ecosystem. Features -Color:Multi -Material:Sandstone -Size:8.00X8.00X6.00cm/3.14X3.14X2.36in - Suitable for hose with diameter of 4mm/8mm inner diameter - Note: Soak this product in water for 15 minutes before use! -Even bubble distribution: the aquarium air stone pieces are designed to ensure even bubble distribution, providing a consistent oxygen supply to the fish tank -Quiet operation: utilizing quiet operation technology, these air bubbler minimize noise, maintaining a calm environment for your fish -Hightemperature : the hightemperature sintering process enhances the durability of these air stones, making them resistant to high temperatures -Effective oxygen enhancement: made from unique materials, these bubble stones effectively enhance the oxygen levels in the water, promoting better fish health - reliability: these aquarium air stones are designed for reliability, ensuring consistent performance and reducing the likelihood of faults Package list: 1 x Airstone