Kua'fon's Harness

Kua'fon's Harness summons the pterrordax mount Kua'fon.

Source
This item is a quest reward from Down, But Not Out.

After the return of Queen Azshara, Pa'ku came up with a plan to teach Kua'fon how to fly.

Mount Journal
''Once a little hatchling, raised into a mighty pterrordax by a loving handler. He never did learn to fly, though.''