Bone spear

Bone Spear is a members-only item on the OSRS Grand Exchange in the weapons category.

In-game examine text: "Basic but brutal!"

It has a Grand Exchange buy limit of 4 every four hours, a high alchemy value of 360 gp, and item ID 5016.

View on OSRS Wiki

Bone Spear shows an active flip setup with a margin of +17 gp and 469 trades over the last 24 hours.

At the buy limit of 4 every four hours, max profit per cycle is about 68 gp — high margin with healthy liquidity.