The Profound Sealing Buckle is an item from the Yun Family that is worn on the arm and conceals the persons Profound aura. It can conceal Sovereign Profound power down to that of a cripple. It is not a perfect concealment but can fool people as long as they do not closely examine the wearer[1].
It was worn by Yun Qinghong and his wife Mu Yurou to evade capture in the Profound Sky Continent.