• Guardian's Silk Cuffs
• Item Level 154Disenchants into:
  [Void Crystal]: 1-2
• Binds when picked up
  
• Cloth
• Wrist
• 183 Armor
• +25 Intellect
  +33 Stamina
• Yellow Socket
• Durability 35 / 35
• Classes: Priest, Mage, Warlock
• Requires Level 70
• Equip: Improves resilience rating by 13.
  Equip: Improves critical strike rating by 18.
  Equip: Increases spell power by 30.
• 
• Vendor 11794 20

Introduced with Arena Season 4.

Source

The cost is 11,794 20 and is available from these PvP vendors:
 Lieutenant Tristia <Armor Quartermaster> Champions' Hall, Stormwind
 Doris Volanthius <Armor Quartermaster> Hall of Legends, Orgrimmar

External links

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