In Wrath of the Lich King it is item level 245, requires level 80 and is named Worldbreaker Legguards. In MoP Classic it is item level 232 and requires level 80.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Conqueror's Worldbreaker Legguards Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Conqueror's Worldbreaker Legguards suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Similar Items
The 10 items nearest to Conqueror's Worldbreaker Legguards (item level 35) in item level among Armor > Mail, Legs slot, from item level 32 to 39.
Items Numbered Next to Conqueror's Worldbreaker Legguards
Blizzard numbers items as they are created, so the named items next to ID 46202 (46197 to 46207) were usually added in the same batch as Conqueror's Worldbreaker Legguards: the same quest line, zone, vendor or reward set.