The Wings Of Eiven are used by the Prophet of Turin, Eiven Realhawk

The Wings were Crafted By Turin as a gift for his Nephew.

The Wings indicate a sign of Light (Which is why they glow)

Wings Of Eiven are the only wings that can allow someone to glide through the air, this allows Eiven to attack his enemies whilst moving. They can be very helpful.

As Turin crafted the wings, he made sure no other than Eiven can use them. If someone were to try and equip the wings, they will cry in agony from the sharp pain of the wings digging into your spine.

But if one were to equip the wings with no problems, you are worthy enough of becoming a Realhawk.