Blue firelighter

Blue Firelighter is a members-only item on the OSRS Grand Exchange in the other category.

In-game examine text: "Makes firelighting a lot easier."

It has a Grand Exchange buy limit of 250 every four hours, a high alchemy value of 9 gp, and item ID 7331.

View on OSRS Wiki

Blue Firelighter shows an active flip setup with a margin of +7 gp and 18,914 trades over the last 24 hours.

At the buy limit of 250 every four hours, max profit per cycle is about 1.8k gp — high margin with healthy liquidity.