• Power Enhancing Loop
• Item Level 219Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
• Unique-Equipped
• Finger
• +68 Strength
  +67 Stamina
• Requires Level 80
• Equip: Improves hit rating by 35.
  Equip: Increases your armor penetration rating by 43.
• Sell Price: 7 56 23

Source

This item drops from the XT-002 Deconstructor in the 10-man version of Ulduar.

Patch changes

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

External links

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