Hoffman 16504 Horticultural Perlite， 18 Quarts<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Horticultural perlite</li><li>Lightweight soil conditioner， loosens clay soil， reduces caking， improves drainage and aeration</li><li>Blend with peat moss and perlite for custom soilless mix</li><li>Natural materials won't upset soil ph</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51o7sbeg0JL.jpg" noproxy>