uxcell 6pcs 2.6 Inch Dia Cylinder Pre-Filter Sponge Filter Media for Aquarium</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Color: Black; Package Content: 6 x Filter Sponge; Material: Coarse Sponge; Net Weight: 30g</li><li>Size: 7.5 x 6.5cm/ 3.0" x 2.6"(L*D); Inner Hole Dia: 2cm/0.8"; Outer Dia: 6.5cm/ 2.6".</li><li>Easy to install over the filter intake.</li><li>For preventing small fish from being sucked into the filter.</li><li>Can be used again after cleaning， enhances biological filtration.</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/51R9n8Fvl9L.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/510Ytg8vGML.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41aOZWtES-L.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/51TXWLcSlJL.jpg' noproxy></br>