Red spiders' eggs

Red Spiders' Eggs is a free-to-play item on the OSRS Grand Exchange in the other category.

In-game examine text: "Ewww!"

It has a Grand Exchange buy limit of 13,000 every four hours, a high alchemy value of 4 gp, and item ID 223.

View on OSRS Wiki

Red Spiders' Eggs shows an active flip setup with a margin of +4 gp and 1,038,682 trades over the last 24 hours.

At the buy limit of 13,000 every four hours, max profit per cycle is about 52.0k gp — high margin with healthy liquidity.