The metal is titanium infused and rainbow colored - quite iridescent metal ostrich feathers.

They are about 2.25 inches long and very lightweight.

These look like Ancient Egyptian Feather of Ma'at, Egyptian Goddess of Justice.

The Goddess Ma'at is the personification of truth, justice, and the cosmic order. She, and her feather, represents the concept of balance and order in Ancient Egypt.

Unique, Egyptian and Steampunk.