Cowhide

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

In-game examine text: "I should take this to the tannery."

It has a Grand Exchange buy limit of 13,000 every four hours, a high alchemy value of 1 gp, and item ID 1739.

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Cowhide currently has a flip margin of −2 gp, which isn't profitable to flip right now despite 45,934 trades over the last 24 hours.

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