uxcell 4 Pcs Striped Colored Plastic Air Bubble Stone for Fish Tank Aquarium</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Add Oxygen to keep water roots healthy， put fishes live at ease.</li><li>Suitable for fish tanks， ponds， aquarium and hydroponic use.</li><li>Net Weight: 52g;Total Size: 4.5x1.5x1.5cm; Material: Mineral， Plastic</li><li>Product Name: Aquarium Plastic Air Stone ;Color: Multi Color</li><li>Variation Theme: Pattern; Package Content: 4 x Aquarium Plastic Air Stone</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/4170CdqJOkL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41KdWizR8pL.jpg' noproxy></br>