uxcell Suction Cup Aquarium Airstone Bubble Wall Tube, 7-Inch, Green Product name : aquarium bubble wall Tube;Material : plastic, rubber, Polycyl Connected tube size : 17.8cm X 1cm / 7" x 0.4"(l*d);color : green Net weight : 21g Package : 1 x bubble wall tube 2 x suction cups : 2 x suction cups