Phra Hoo Yahn is a Buddhist amulet that originates from Wat Phra Sri Rattanamahathat in Lopburi, and is cast from iron. It depicts a Buddha image seated in the half lotus position on a lotus pedestal, while performing the maravijaya mudra. The amulet's name derives from the Buddha's elongated earlobes, which are the result of the wearing of heavy golden earrings during his time as a prince, prior to renouncing his royal life.