This aquarium air stone creates a mist of fine bubbles, enhancing oxygen levels and promoting a healthy aquatic environment. Its ceramic and ABS construction ensures durability and rust resistance, while the suction cup provides secure attachment to surfaces. Features -Color:White -Material:Ceramic, ABS -Size:7.00X7.00X3.90cm/2.75X2.75X1.53in - Stone diameter: 50 mm - Overall diameter: 70 mm - Stone height: 26 mm - Air inlet height: 39 mm - Applicable tube inner diameter: 4 mm -Durable fish tank bubbler: Made from excellent ceramic and ABS, at high temperatures for enhanced durability -aquarium air bubbles diffuser: Produces fine bubbles to increase oxygen levels during the day and absorb carbon dioxide at night for a balanced aquatic environment -Easy Maintenance: Reusable design allows for easy cleaning when dirt or reduced bubble output occurs, ensuring long-term functionality -Secure Attachment: Equipped with a suction cup for firm adherence to aquarium surfaces, providing stable and reliable performance -Versatile Compatibility: seamlessly with air hose and oxygen pumps, making it ideal for various aquarium setups Package list: 2 x air stone 1 x suction cup 1