Acorns come from oak trees , They are full of tannins which will dye plant fibers a pinkish-brown. With an iron dip, the pinkish-brown turns a pretty grey-black. For using this dye, you can use a rockor a hammer. Mash the acorns & put them back into the jar. You’ll see the brown liquid already forming as you work. GIFT: 20g of alum for mordant will be sent as a gift for 200g purchase. SHIPPING POLICY: We do not refund for lost packages. We are not responsible for any duty/import/taxes/customs/etc charges you may incur. We do not refund postage for lost, unclaimed or undeliverable packages. If a package is delivered but missing at your door way, you need to report to your local post office & police. If a package is returned as undeliverable/unclaimed, it is the customers responsibility to follow up with the postal carrier. Acorn Dye, Acorn, Dried Herb Wood Chips , Natural Dye Ingredient, Botanical Dyes, Eco Print, Plant