Description:<br /><br /> Aquarium Fish Tank Air Bubble Stone Globular Aerator Diffuser<br /><br />  Attached to an air pump, creates bubbbles and add oxygen to you fish<br /><br /> Specification:<br /><br /> Diameter of waterpipe joint: 3mm\/0.11&amp;quot;<br /> Color: Blue<br /><br /> Package Includes:<br /><br /> 1 x Fish Tank Air Bubble Stone