• Mechanist's Bindings
• Item Level 226Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
  
• Leather
• Wrist
• 259 Armor
• +63 Agility
  +63 Stamina
• Durability 40 / 40
• Requires Level 80
• Equip: Improves critical strike rating by 39.
  Equip: Improves haste rating by 44.
  Equip: Increases attack power by 84.
• Sell Price: 5 36 48

Source

This item drops from the Flame Leviathan 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