Iron knife

Iron Knife is a members-only item on the OSRS Grand Exchange in the bars category.

In-game examine text: "A finely balanced throwing knife."

It has a Grand Exchange buy limit of 7,000 every four hours, a high alchemy value of 1 gp, and item ID 863.

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Iron Knife currently has a flip margin of +0 gp, which isn't profitable to flip right now despite 410,709 trades over the last 24 hours.

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