Our air stone piece is designed to enhance the oxygen levels in your fish tank or aquarium, ensuring a healthy environment for your aquatic pets. The bubble stones produce fine, uniform bubbles that efficiently diffuse oxygen throughout the water. This aquarium accessory is suitable for maintaining optimal water quality and promoting the well-being of your fish. Features -Color:Black -Material:Sandstone -Size:16.00X13.00X2.10cm/6.29X5.11X0.83in - Suitable for hose with diameter of 4mm/8mm inner diameter - Note: Soak this product in water for 15 minutes before use! -Uniform air distribution: the air stone piece is designed to distribute bubbles evenly, ensuring a consistent supply of oxygen throughout the fish tank -Silent operation: utilizing advanced silent technology, this bubble stone minimizes noise, creating a peaceful and quiet environment for your aquarium -Hightemperature sintering: the air stone is treated with hightemperature sintering, making it highly and suitable for various types of aquariums -Stylish and aesthetic: the sleek and modern design of the air stone enhances the visual appeal of your aquarium, providing a comfortable living environment for your fish -Easy installation: simply connect the air stone to an air pump, and it’s ready to use, making the setup process quick and easy Package list: 3 x Airstone