A perfect set of high-quality air pump accessories that allows your air pump to function as expected. Free yourself from the trouble of finding matching accessories from various dazzling brands. Much more convenient and time-saving. Features: Used to supply oxygen to water, suitable for aquarium, fish tank. Standard set of aquarium accessories for the most air pumps. Transparent and flexible material. Desired length for most fish tank, toxic-free, and flexible. 8 suction cups and 4 check valves, stick to the smooth fish tank tightly. A red check valve can prevent water from back siphoning. Airstone produces more bubbles, making it easier for oxygen to melt in the water. Specification: Name: Aquarium air pump accessories set Material: PVC + PE + Quartz Airline tubing length: 5m Package Information: Package size: 14202cm Package weight: 230g Plastic Package Package List: 1 x Airline tubing 4 x Airstone 4 x Non-return check valve 8 x Suction cup