Wildheart Bracers

Wildheart Bracers was part of the Druid-aimed Wildheart Raiment, a Dungeon Set 1 gear set.

Source
This item dropped from:
 * Crimson Inquisitor in Stratholme
 * Diseased Ghoul in Scholomance
 * Wailing Banshee in Stratholme
 * Shrieking Banshee in Stratholme

As a quest objective
This item was an objective of An Earnest Proposition.

Please see the Dungeon Set 2 page for a walkthrough on upgrading your Set 1 pieces to Set 2.