uxcell Tube Shaped Aquarium Bubble Wall Air Stone Tube 23 Inch Long Green Product Name : Bubble Wall Air Stone Tube;Suitable for : Fish Tank, Aquarium Design : Tube Shaped;Material : Plastic, Rubber Tube Size(Jointed) : 58 x 1cm / 23"x 0.4" (L*D);Color : Green Net Weight : 36g Package Content : 2 x Bubble Wall Air Stone Tube(jointed length 18")3 x Suction Cup