• Northern Barrier
• Item Level 226Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when equipped
  
• Shield
• Off Hand
• 7890 Armor
• 221 Block
• +42 Strength
  +94 Stamina
• Durability 120 / 120
• Requires Level 80
• Equip: Increases defense rating by 63.
  Equip: Improves hit rating by 28.
  Equip: Increases your expertise rating by 28.
• Sell Price: 13 89 3

Source

This item can be found inside Cache of Winter after defeating Hodir in the 25-man version of Ulduar.

Patch changes

• Patch 3.1.0 (14-Apr-2009): Added. 
  

External links

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