Crafted from ABS, materials, this Air Stone is both practical and durable, ensuring a . It is an excellent tool for enhancing oxygen levels in your hydroponic growth system, aquarium, or fish tank. It is particularly well-suited for use in aquariums and fish tanks, making it an for you. Features -Color:Black -Material:ABS, - Size: 3.80X1.80X1.80cm/1.49X0.71X0.71in - Fish tank bubble stone is very convenient to install. It is undoubtedly suitable for ornamental fish and large fish farming. - Simple appearance, small size, and will not take up too much space in the fish tank. - Delicate and home and park aquarium decoration. Suitable for freshwater, seawater aquariums, hydroponics or fish tanks. - The aquarium bubble stone is made of sturdy materials, strong and durable, and has a . - A great way to increase oxygen solubility in your aquarium and safe to the aquatic animals. Package list: air stone