Premium Horticultural Perlite 3-5mm Potting Compost, 1L, 2L, 5L, 10L (10L)Available in various sizes to minimize waste Natural mineral that prevents water loss and soil compaction Can be used for seed starting, amending potting mixes, and rooting cuttings Expands up to 15 times when heated at high temperatures, creating a porous structure for storing air and water Improves the health of your lawn and promotes root development Enhances dry or sandy soils A naturally occurring mineral in the form of amorphous volcanic glass,