• Brass-lined Boots
• Item Level 226Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
  
• Mail
• Feet
• 903 Armor
• +85 Agility
  +66 Stamina
  +45 Intellect
• Durability 70 / 70
• Requires Level 80
• Equip: Improves haste rating by 43.
  Equip: Increases attack power by 114.
  Equip: Increases your armor penetration rating by 57.
• 
• Sell Price: 10 25 49

Source

This item drops from the XT-002 Deconstructor 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