• Belt of the Winter Solstice
• Heroic
• Item Level 245Disenchants into:
  [Abyss Crystal]: 1-2
• Binds when picked up
  
• Leather
• Waist
• 350 Armor
• +77 Stamina
  +77 Intellect
  +64 Spirit
• Red Socket
  Blue Socket
• Socket Bonus: +6 Spirit
• Durability 40 / 40
• Requires Level 80
• Equip: Improves critical strike rating by 51.
  Equip: Increases spell power by 99.
• 
• Sell Price: 5 86 40

Source

This item drops from Lord Jaraxxus for Alliance players in the 10-man heroic mode version of Trial of the Crusader.

Patch changes

• Patch 3.2.0 (04-Aug-2009): Added. 
  

External links

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