This is a work by Shinsui Ichino, a popular Tamba-yaki artist. It looks like yakishime (unglazed stoneware), but the box inscription says "Hakudo" (white clay), indicating a thin glaze has been applied. It also comes with a shifuku (protective cloth bag), giving it the proper presentation for a tea utensil. Although it is unused, I am selling it because I have no opportunity to use it. Diameter: Approximately 14.5cm Height: Approximately 9cm [Warning] The exact same item is being offered on multiple other sites. They are using the same photos without permission and at about half the price. Of course, even if you purchase from those sites, the item will not be shipped. I believe it is a type of scam.