Crushed superior dragon bones

Crushed Superior Dragon Bones is a members-only item on the OSRS Grand Exchange in the other category.

In-game examine text: "Ground up superior dragon bones."

It has a Grand Exchange buy limit of 11,000 every four hours, a high alchemy value of 30 gp, and item ID 21975.

View on OSRS Wiki

Crushed Superior Dragon Bones shows an active flip setup with a margin of +798 gp and 86,534 trades over the last 24 hours.

At the buy limit of 11,000 every four hours, max profit per cycle is about 8.78m gp — high margin with healthy liquidity.