Spiked manacles

Spiked Manacles is a members-only item on the OSRS Grand Exchange in the other category.

In-game examine text: "Some very spikey metal bands, better make sure I don't cut myself while walking."

It has a Grand Exchange buy limit of 8 every four hours, a high alchemy value of 1.5k gp, and item ID 23389.

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Spiked Manacles shows an active flip setup with a margin of +23.8k gp and 1,111 trades over the last 24 hours.

At the buy limit of 8 every four hours, max profit per cycle is about 190.4k gp — high margin with healthy liquidity.