uxcell Fish Tank Aquarium Air Stone Bubble Wall Tube Aeration 28 Inch Long Color: Green; Package Content: 1 x Aquarium Bubble Wall Air Stone Tube Total Size: 71cm/28"; Material: Plastic, Rubber Product Name: Aquarium Bubble Wall Air Stone Tube; Net Weight: 44g Tube Diameter (Approx.): 1cm/0.4" Suction Cup Dia: 2.5cm/1"