• Belt of the Living Thicket
• Item Level 226Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
  
• Leather
• Waist
• 333 Armor
• +73 Stamina
  +60 Intellect
  +56 Spirit
• Durability 40 / 40
• Requires Level 80
• Equip: Improves haste rating by 56.
  Equip: Increases spell power by 100.
• 

Source

This item is sold by the following vendors for 28 :

•  Arcanist Firael <Emblem of Conquest Quartermaster> in Dalaran
•  Hexil Garrot <Tools of the Trade> in Dalaran
•  Magister Sarien <Emblem of Conquest Quartermaster> in Dalaran
•  Valerie Langrom <Leather Armor Merchant> in Dalaran

This disenchants into a single Abyss Crystal and required level 375 Enchanting to do so.

Patch changes

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

External links

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