... -4MM,2-5MM,3-6MM Horticulture,construction ISO9001-2000 company. Type,Raw(unexpanded) perlite,expanded(poped) perlite.Size:1,Raw perlite ... -6mm etc.Packing,1,Raw perlite,In 25kg pp bags or in 1mt big bags for shipment.2,Expanded perlite,In 100liters pp ... bags for shipment. or as you request.Quantity,For raw perlite ...