CNZ BB150 Bio-Balls Filter Media for Fish Pond Waterfall Fountain<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Includes a free mesh bag</li><li>Will not compact like other soft media， reduces channeling of water around media</li><li>1.25 Inch in diameter， black in color， approximately 150 per bag</li><li>These plastic bio-balls are a great media for use in all types of filters</li><li>Weight: 800g Dimension: approximately 11" x 8" x 4"</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51GlSp0-jVL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/514TIeQSKmL.jpg" noproxy>