Mithril seeds

Mithril Seeds is a members-only item on the OSRS Grand Exchange in the seeds category.

In-game examine text: "Magical seeds in a mithril case."

It has a Grand Exchange buy limit of 18,000 every four hours, a high alchemy value of 120 gp, and item ID 299.

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Mithril Seeds currently has a flip margin of −18 gp, which isn't profitable to flip right now despite 66,691 trades over the last 24 hours.

Items with negative or zero margins like this are better watched than actively flipped until the spread widens.