Dusty Mining Gloves

Dusty Mining Gloves are leather gloves that protect a miner's hands in the tunnels when they are looking for metals and gems. They give a bonus to strength and agility.

Source
Dusty Mining Gloves are a quest reward from the Alliance quest which starts with Wilder Thistlenettle in Stormwind City. To complete the quest, you must turn the following items to Wilder Thistlenettle:
 * 4 Miners' Union Card