This is a "second" and on sale at a reduced price because it has a small surface crack in the bottom. The crack does not go through and will not widen and does not make the tumbler leak.
This small, porcelain tumbler was thrown on the wheel and fired to vitrification for strength, durability and translucency.
It is made of a very white, translucent porcelain made from the purest (and most expensive) kaolin in the world (New Zealand).
About 3 inches high and about 3 inches wide. Holds about 1 cup.
Food-safe. Okay in microwave and dishwasher.
At the time of writing this there were 3 in stock. Some may have sold by the time you read this. The one you get may or may not be the one pictured alone but will be very similar.