Draconic Embossment - Agility

Draconic Embossment - Agility is an Leatherworking-only permanent bracers enchantment optimized for hunters, rogues, enhancement shamans and Feral_Druid tanks. A leatherworking skill level of at least 500 must be maintained to receive the benefit.

Source
Learned from Leatherworking trainers at 500 skill.