When you keep fish in your fish tank or in pond in your backyard, you have to realize that oxygen is one of the most key factors to affect fish's living. So besides a qualified oxygen pump, recommend you to buy this bubble wall air stone bar! It's durable in use, and will efficiently transport oxygen into water, increasing dissolved oxygen volume of the water, providing fish with a comfortable and fresh living environment. Features: Creates a dramatic mist of healthful bubbles that your fish will in your aquarium Evenly distributes fine bubbles through a super-porous, non-clogging wand The tough material stands up to continual use Powerful rubber sucker helps to stick to fish tank very tight The two sections of bars can be jointed to be a whole one Perfect for your fish tank or aquarium, and it is the best partner for air pump Prolong life-span of air motor, save power and reduce noise Any problem, please contact our store without hesitation. Honor to serve you! Specifications: Item name: Bubble Wall Air Stone Bar Material: Hard Color: Blue Diameter: Φ10mm Length: 23inch/ 58.4cm There might be some deviation due to manual measurement. Package Information: Package size: 35.5 * 6.5 * 3cm / 13.9 * 2.6 * 1.2in Package weight: 38g Package List: 1 * 23 Inch Bubble Wall Air Stone Bar Creates a dramatic mist of healthful bubbles that your fish will in your aquariumEvenly distributes fine bubbles through a super-porous, non-clogging wandThe tough material stands up to continual use Powerful rubber sucker helps to stick to fish tank very tight The two sections of bars can be jointed to be a whole onePerfect for your fish tank or aquarium, and it is the best partner for air pumpProlong life-span of air motor, save power and reduce noiseAny problem, pleas