Leggings of the Fiery Protector

Leggings of the Fiery Vanquisher  is a tier 12 armor token. It can be exchanged at in Stormwind City or  in Orgrimmar for the following items:
 * Flamewaker's Legguards
 * Erupting Volcanic Kilt
 * Erupting Volcanic Legguards
 * Erupting Volcanic Legwraps
 * Legguards of the Molten Giant
 * Legplates of the Molten Giant

Source
This item drops from Shannox in the Firelands on heroic mode.