As an important instrument for esoteric Buddhism, the Vajra has entered China along with its teachings and rituals. The Esoteric Buddhism Department of the Tripitaka records that the vajra is like golden light when it comes out. The vast world is shaken in six ways, and the ghosts and gods are now collapsing. Buddha said: Don’t be afraid of ghosts and gods, I am the Vajra Treasure. This is why the supernatural powers are free and powerful. There are already benefits in rejecting all evil things. This wrathful cold iron vajra is used to subjugate demons. The overall shape of the vajra is from thick to thin, which is quite Western Xia style, and at the same time it has Tibetan style. This pestle is large in size, full in shape, full of strength, and the delicate material is like a baby's skin. The middle stock is strong and powerful, with clear edges and corners, hard and sharp lines, powerful and thick. The oblique strands wrap around the middle strands like a lantern. It has been cast from cold iron. It has strong power, a chilly feeling, a warm and delicate feel, and a full sense of strength. For practitioners, this is a rare product. Its charm index is self-evident. Inherited from Kathok, the inheritance is orderly and extremely special.