Runed Titanium Rod

The Runed Titanium Rod is the rod needed by enchanters in Wrath of the Lich King for higher level end-game enchants. Most enchants that are trained at the beginning make use of the Runed Eternium Rod from The Burning Crusade expansion, however later enchants will require this rod instead.

Source
This rod is crafted by enchanters with a skill of 425.

The pattern can be taught by grand master enchanting trainers.