Feature: 1. 4 suction cups and 1 air tube, firmly adhere to the smooth tank, neat and beautiful, not easy to loose. 2. Increases oxygen content to meet a variety of environments, suitable for aquarium, fish tank. 3. Standard set of aquarium accessories for most air pumps, the air stone produces more bubbles, making it easier for oxygen to melt in the water. 4. The tube used transparent and flexible material. Desired length for most fish tanks, non‑toxic and flexible. 5. Two‑way valve divides the air pipe into 2, reconnect the two ends with an air regulating valve, and then control the rotary plug to adjust the size of the air flow. Specification: Conditon: 100% Brand New Item Type: Aquarium Air Pump Accessories Material: Plastic Color: As Pictures Shown. Package List: 1 x Tube2 x Air Stone4 x Suction Cup2 x Accessory