Dreadnaught Gauntlets

The Dreadnaught Gauntlets are the Tier 3 plate hand armor for warriors and gives bonuses to strength, stamina, block, and overall defense. It is available through quest items in Naxxramas.

Source
The Dreadnaught Gauntlets are a quest reward from the quest which starts with Korfax in Light's Hope Chapel in Eastern Plaguelands. To complete the quest, you must turn the following items to Korfax:
 * 1
 * 8
 * 1
 * 5