Black platelegs

Black Platelegs is a free-to-play item on the OSRS Grand Exchange in the armour category.

In-game examine text: "Big, black and heavy looking."

It has a Grand Exchange buy limit of 125 every four hours, a high alchemy value of 1.2k gp, and item ID 1077.

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Black Platelegs shows an active flip setup with a margin of +341 gp and 1,951 trades over the last 24 hours.

At the buy limit of 125 every four hours, max profit per cycle is about 42.6k gp — high margin with healthy liquidity.