Details: Volcanic pumice soil amendment 14 dry quarts Natural mined Pumice. Size is 3/8 x 1/4. Perfect for any mix! We use pumice specifically for proper drainage, aeration, and mineral content for our rock eating cacti. It can be used in low ratio mixes for mountain cacti like Trichocereus, or in high ratios for desert cacti like Ariocarpus. Our natural mined pumice is an upgrade from store bought perlite, therefore we recommend ditching your perlite and using pumice instead. Pumice is a heavier mineral, so you will no longer have floating perlite when you water your plants! Cactus Kaktus LLC

Package Dimensions: 13.0 x 12.7 x 6.7 inches