High Quality: Our aquarium air stone bubble bar is made of high-quality material, non-toxic, safe, durable and also environmental friendly. With Suction Cup: The aquarium air stone bubble bar with strong suction cup, could firmly fix the aquarium bubble tube on the wall of fish tank, the bubble tube won't float on the water, practical and durable. Could be Extended: The aquarium air stone bubble bar could be extended, double tubes could be easily connected by the plastic connector, so you could connect them into a suitable length to meet the length of your fish tank. Increase Oxygen: The aquarium air stone bubble bar is uniform and the dissolved oxygen in water is increased, suitable for using in both fresh water and seawater. Need to use a pin or needle to puncture for as many small holes as needed before using. Easy to Clean: The aquarium air stone bubble bar's air inlet head could be disassembled for easily cleaning, keeping air intake freely. It also can help to extend the life of air pump motor, energy saving and reduce noise.Package Included: 1 x Bubble Tube