This is a set of Ryukyu glass from the Galaxy series, including a tokkuri (sake bottle) and rock glasses. They can be sold separately. Each piece is handmade, so the patterns are unique, making them one-of-a-kind items. Therefore, the sizes may vary. The rock glasses are high-end items, costing around 10,000 yen each. The tokkuri is large, and I think it can hold about 3 go (a unit of volume, roughly equivalent to 540ml). There are two rock glasses with a base and one without a base. They can be sold separately, but the shipping cost will be higher for a single item. Thank you for your understanding. Please feel free to ask any questions about the size, etc.