Shoulders of the Forlorn Protector

Shoulders of the Forlorn Protector is a tier 11 armor token. It can be exchanged at in Stormwind City or  in Orgrimmar for the following items:
 * Earthen Pauldrons (heroic)
 * Earthen Shoulderguards (heroic)
 * Lightning-Charged Spaulders (heroic)
 * Mantle of the Raging Elements (heroic)
 * Shoulderwraps of the Raging Elements (heroic)
 * Spaulders of the Raging Elements (heroic)

Source
This item drops from Cho'gall in the Bastion of Twilight on Heroic mode.

It can also be purchased from the following vendors for :
 * in Stormwind City
 * in Orgrimmar