• Polished Mirror Helm
• Item Level 219Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
  
• Mail
• Head
• 1056 Armor
• +76 Stamina
  +70 Intellect
• Meta Socket
  Yellow Socket
• Socket Bonus: +8 Haste Rating
• Durability 85 / 85
• Requires Level 80
• Equip: Improves haste rating by 54.
  Equip: Restores 34 mana per 5 sec.
  Equip: Increases spell power by 105.
• Sell Price: 9 98 37

Source

This item drops from Forgemaster Garfrost in Pit of Saron.

Patch changes

• Patch 3.3.0 (08-Dec-2009): Added. 
  

External links

• Battle.net (EU)
• Wowhead
• Thottbot
• WoWDB