Black knife

Black Knife is a members-only item on the OSRS Grand Exchange in the other 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 11 gp, and item ID 869.

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Black Knife currently has a flip margin of +0 gp, which isn't profitable to flip right now despite 140,710 trades over the last 24 hours.

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