Uxcell Silicone Fish Tank Air Oxygen Circulation Pipe, 120-Inch, Green Product Name : Aquarium Oxygen Pipe; Color : Green Material : Silicone; Total Length : 3meter/9.8ft Internal Diameter : 4mm/0.15"; External Diameter : 5mm/0.2" Weight : 57g Package Contents : 1 x Aquarium Oxygen Pipe