Thank you for viewing. Please check the photos for details of the item. My mother received this from an acquaintance about 30 years ago. It has been stored at home unused. I don't know what it is, but it's ceramic. Height: approx. 13 cm, Width: approx. 7 cm, Depth: approx. 4.5 cm Was it during firing... or did the artist calculate this shape...? It has a wonderfully uneven texture. Please let me know if you need more photos. ◎The pothos in the photo is for display purposes only. Please consider this item, understanding that it is a used item inspected by a non-professional and stored at home.