Contains NO INSTRUCTIONS and no additional supplies, just the three ingredients you’ll need to create an active ferrous indigo vat AKA the copperas vat. Copperas is the antiquated name for ferrous sulfate heptahydrate This is intended for dyers with experience mixing an indigo vat. Includes : 60g of 10% natural plant indigo extract. Grown and processed in USA! 100g of Ferrous Sulfate Heptahydrate (Iron) 160g of Calcium Hydroxide (Slaked Lime) In a bag. That’s it