Description:<br /><br /> Blue Aquarium Fish Tank Wall Air Bubble Stone Tube<br /> \u25cfInstantly create a great deal of tiny bubbles that your fish will love<br /><br /> \u25cfThe tube can be cut with a razor blade to be short<br /><br /> \u25cfFit for Aquarium Oxygen Pipe External Dia.4mm\/ 0.16&amp;quot;<br /><br /> \u25cfAdditional bubble walls can be jointed with the enclosed connector<br /><br /> \u25cfRubber suction cup can produce enormous power to stick to glass surface firmly<br /><br /> \u25cfNeed to use a pin or needle to puncture for as many small holes as needed before using<br /><br /> Specification:<br /><br /> Material: Plastic+Rubber<br /><br /> Product Name: Bubble Wall Air Stone Tube<br /><br /> Suitable for: Fish Tank, Aquarium<br /><br /> Air Stone Size:7&amp;quot;, 10&amp;quot;, 14&amp;quot;, 18&amp;quot;, 23&amp;quot;, 28&amp;quot;<br /><br /> Color:Blue<br /><br /> Package Incldues:<br /><br /> 1 x Bubble Wall Tube<br /><br /> 2 x Cup suctions(7&amp;quot;\/10&amp;quot;)   \/  3 x Cup suctions(14&amp;quot;\/18&amp;quot;\/23&amp;quot;\/28&amp;quot;)