"Contains four statted cloaks geared towards level 20 characters, the Steed of the Eastemnet, and cosmetic Rohirrim skirmish soldier appearances."
You receive this item in inventory once you have pre-ordered the expansion:
Riders of Rohan (Base Edition).
Once you open this gift box, all of these items will be placed into your inventory:
Eastemnet Cloaks (Level 20)
Rohirrim Warrior Appearance - Man
Rohirrim Warrior Appearance - Woman
Soldier Race - Rohirrim Man
Soldier Race - Rohirrim Woman
Steed of the Eastemnet