Knife

Knife is a free-to-play item on the OSRS Grand Exchange in the other category.

In-game examine text: "A dangerous looking knife."

It has a Grand Exchange buy limit of 40 every four hours, a high alchemy value of 3 gp, and item ID 946.

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Knife currently has a flip margin of −1 gp, which isn't profitable to flip right now despite 2,552 trades over the last 24 hours.

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