I received this as a gift. It's made of glass. The glass is about one size larger than an egg. It seems to be a brandy glass, but since no one in the house drinks alcohol, it was wrapped in bubble wrap and stored away. There are no tags or outer box. Please be aware of this. Judging by the elegant form and high quality, I suspect it's made in Japan or a developed European country. There are no markings. The main feature is that when it's laid on its side, it doesn't fall completely over. The bottom is weighted, and like a roly-poly toy, it rolls around without fully tipping over. It's quite cute to watch. The design is stylish, and the weighted bottom makes it difficult to tip over, so I think it could also be used as a small vase or interior decoration. Diameter of the opening: 4cm. Height from the outside: 6cm. It will be wrapped in the original bubble wrap and shipped in a Yamato Takkyubin Compact dedicated box. For those who understand that it has been stored at home for a long time, thank you in advance.