... -5mm, 4-6mm, 4-8mm, etc. Orange Silica Gel sachet Orange silica gel , is also called Self-indicating silica gel. The specification isas follows:1 ... .3.Packing: 25kgs/bag, 25kgs/drum, 150kgs/drum, 800kgs/bag Orange silica gel sachet: 1g, 2g, 3g, 4g, 5g, 6g, 10g, 100g ...