Runed Band of the Kirin Tor
The Runed Band of the Kirin Tor is one of the upgradeable Kirin Tor rings. It is gained by trading an and 1,250 (at Neutral Kirin Tor reputation) to <Jewelry Vendor> in Dalaran. At Exalted, you only need 1,000.
Using it teleports the adventurer to Dalaran in Northrend.
While there is no current upgrade available for this ring, there may be later.