Natural and non-toxic expanded volcanic glass that is lightweight and a micro-porous medium. Perlite can be mixed into compost or soil to improve drainage and root aeration, stimulates root development and vigorous growth and retains moisture. Perlite also helps prevent soil compaction. Contents: 100% Expanded Volcanic Glass Size: 2 - 4mm Caution: Extra care should be taken to avoid inhalation of perlite particles when handling, especially when mixing into soil, the use of a mask is strongly encouraged.
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Store in a cool and dry place. Keep away from children and pets.