This item is crafted with Engineering (170); taught by trainers.
This item is also sold in limited quantities by a large number of engineering suppliers.
As an Ingredient
As a quest objective
The subject of this section was removed from World of Warcraft in patch 4.0.3a but is present in Classic.
- Patch 6.0.2 (2014-10-14): Stacks to 200, up from 10.