In Wrath of the Lich King it is item level 226 and requires level 80. In MoP Classic it is item level 200, requires level 80 and sells to vendors for 1c.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Heroes' Earthshatter Gloves Compares
Who It Suits
Mail is the armor type Evoker, Hunter and Shaman wear. With Agility or Intellect, Heroes' Earthshatter Gloves suits Beast Mastery, Marksmanship and Survival Hunter; Elemental, Enhancement and Restoration Shaman; Devastation, Preservation and Augmentation Evoker.
Transmog Sets
Heroes' Earthshatter Gloves is part of the transmog set Heroes' Earthshatter Regalia (Shaman only). The other 16 pieces:
Items Numbered Next to Heroes' Earthshatter Gloves
Blizzard numbers items as they are created, so the named items next to ID 39593 (39588 to 39598) were usually added in the same batch as Heroes' Earthshatter Gloves: the same quest line, zone, vendor or reward set.