• Band of Celerity
• Item Level 115Disenchants into:
  [Large Prismatic Shard]: 1 (99.5%)
  [Void Crystal]: 1 (0.5%)
• Binds when picked up
• Unique-Equipped
• Finger
• +25 Stamina
• Requires Level 70
• Equip: Improves your haste rating by 18.
  Equip: Increases attack power by 40.
• Sell Price: 71 2

Source

Dropped by Kael'thas Sunstrider in Magisters' Terrace.

Patches and hotfixes

Patch 2.4.0 (25-Mar-2008): Added 

External links

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