This is a whetstone sold by Sazare Meito. It is said to be a whetstone processed from the original stone used in the stone walls of Zenmyoji Temple, which is now Okuden-cho, Umegahata. It seems that it has weathered exquisitely and become a good whetstone. It is hard but also has a good amount of stickiness, and offers a smooth sharpening feel like a cloud, with a slippery sensation. It has good abrasive power and produces an elegant, cloudy finish. There are no scratches at all. It is hard and thick, so it is a very good and recommended whetstone that can be used for a long time. Size: 175mm x 65mm x 53mm 1383g Cured by Ishi-san Quote from Sazare Meito's description: During the widening of the national highway, the original stone used for the stone walls was re-forged and commercialized when the Takao Zenmyoji Temple was removed in the mid-Meiji period. Because it was used as an "anko" (packing material), it has zero frost damage. The mica has fully risen, and it is an all-around strong and famous whetstone with excellent usability, fine precision, and stickiness. You won't be able to go back to a stone that has only been cut or polished.