Gauntlets of Dexterity

The Brawling Hands set the dexterity to 18 and give all related bonuses. These gloves can be found at the Gnoll Stronghold where the ogrillon guarding the bridge has them in his possession. When he is killed, he drops this item.

In-game description
"Gauntlets of dexterity: 'The Brawling Hands'. This pair of gauntlets was likely developed in Kara-Tur to aid masters of the martial art. Legends speak of such masters from the Far East bringing these items with them on their journeys, though details remain sketchy."