• Overload Legwraps
• Item Level 226Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
  
• Cloth
• Legs
• 275 Armor
• +85 Stamina
  +86 Intellect
• Durability 75 / 75
• Requires Level 80
• Equip: Improves hit rating by 81.
  Equip: Improves haste rating by 66.
  Equip: Increases spell power by 132.
• 
• Sell Price: 8 48 59

Source

This item drops from Assembly of Iron 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