uxcell Air Stone Bubble Diffusers Maker For Each Gallon Fish Tank</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Color: Blue; Package Content: 20 x Air Stone; Model: NAJ-041</li><li>Total Size: 4x1.5cm/ 1.57" x 0.6"(L x D); Material: Plastic，Mineral; Net Weight: 130g</li><li>Made of mineral material， it effectively create water currents and dazzling underwater scenes.</li><li>Creates bubbles in fish tank while attached to an air pump(Not Included).</li><li>An ideal tool to add oxygen to your hydroponic growing system.</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51Ds3E1cwUL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/614gTnxLHwL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/61-uD74XL0L.jpg' noproxy></br>