Uxcell Fish Tank Air Stone Diffuses Bubble Wall Tube, 14-Inch Long, Blue Product Name : Bubble Wall Air Stone Tube; Suitable for : Fish Tank, Aquarium Fit for Aquarium Oxygen Pipe External Dia. : 4mm/0.16"; Design : Tube Shaped Material : Plastic, Rubber; Air Stone : 35.6cm/14" Total Size(Jointed) : 39 x 1cm/15" x 0.39" (L*D); Color : Blue Net Weight : 16g; Package Content : 1 x Bubble Wall Air Stone Tube3 x Suction Cup