You will get 10Pcs air pipe control valves about 4.7cm in lenght, easy to use, small in size, easy to carry and store. Our air pipe control valves are made of high-quality plastic, wear-resistant, durable, not easy to break, and can work for a long time. This air pipe control valve, no harm to to your aquarium pets, sturdy and long lasting use. Perfectly meet your fish farming needs. These air pipe control valves with the valve control lever, it is convenient to regulate the air flow from low to high. The air pipe control valve is suitable for aquariums and aquariums. This air flow control valve is a good product to keep fish.