• Natural expanded clay ideal for draining plants in pots and glass compositions. • Improves the condition of plants by making the substrate looser so the roots can breathe better. • Allows creating a drainage layer at the bottom of the pot to drain excess water and prevent rot. • Inhibits weed growth and protects plants against mold formation. • Coarse 10-20 mm fraction suitable for pots with large holes and for maintaining moisture. • Natural granules produced through the firing process of clay with high porosity.