According to Somepage this is used to make Healing Mail...
Level: 70
Slot: Body
Type: Scale
Jobs: DRG
Races: All
Defense: 47
* HP +12
* Resist vs. Fire +10
* Resist vs. Ice +10
* Resist vs. Wind +10
* Resist vs. Earth +10
* Resist vs. Lightning +10
* Resist vs. Water +10
* Resist vs. Light +10
* Resist vs. Dark +10
* Breath Damage Taken -9%
* Enchantment: Recover Wyvern HP
<Max Charges: 30 / Equip Delay: 30s / Reuse Timer: 10m>