Large pouch

This item is one of the Items Not Kept on Death.

Large pouch are bags that can hold nine of rune essence or pure essence for use in the Runecrafting skill. This item requires level 50 Runecrafting to use. This item is dropped by Abyssal monsters and can be bought from Wizard Korvak in the Runecrafting Guild.

http://img18.imageshack.us/img18/3835/degradedlargepouch.png This is what the Large Pouch looks like after it degrades.

Quest issues
During the quest Devious Minds a large pouch is used to   hold a sphere and is then lost, therefore you will have to get another!