If appropriate, you might want to import some information from a database site - see Fansites for listings.
Pages linking here may have clues as to what the page should contain, or perhaps the discussion page.
Engineering Bags are a special type of bag that hold items created by engineers. They cannot hold many items used by engineers however, like ore, bars, gems, and cloth. Besides all your engineering trinkets and parts the bags also hold engineering schematics, and as of 2.3, all primals and motes.
The [Heavy Toolbox], a 20-slot engineering bag, is available from Fabian Lanzonelli in Allerian Stronghold, Floyd Pinkus in Thrallmar and Caregiver Ophera Windfury in Temple of Telhamat.
The [Fel Iron Toolbox] is a 24-slot engineering bag, that can be created by engineers in the Burning Crusade. The schematic is sold by Feera in The Exodar, Wind Trader Lathrai in Shattrath City, and Yatheon in Silvermoon City.
The [Titanium Toolbox] is a 32-slot engineering bag, that can be created by engineers in the Wrath of the Lich King. The schematic, which was added in patch 3.0.8, is sold by Bryan Landers in Dalaran.