This is a work by glass artist Tatsumi Yamashita. I purchased it at an exhibition. I have been collecting these for a long time, and I used to use them for a while and then stored them. I am selling them because I have too many. As they are blown glass, each one has a unique expression. This one has a moderate thickness and is easy to hold, making it easy to use daily. You can use it for juice or even alcohol. If you like them, please consider purchasing them. Please refrain from purchasing if you are looking for unused items or if you are very particular, as these items have been stored by a private individual and have been used. Please consider purchasing if you understand the photos and the above content. Size: Diameter 10cm Height 9.5cm ※The engraving on the back of the work is by the artist. ※Also, there may be small air bubbles or black spots that look like small moles, which are undissolved pigments called "specks." ※The lines in the glass are caused by impurities called "veins" that do not dissolve in the raw material sand, or by the clay of the melting pot eroding and entering the glass. This is not a scratch, but a characteristic of handmade glass and is valued as part of the design, as long as it does not detract from it. - Quantity: Set of 6 - Material: Glass - Shape: Glass Thank you for viewing. Material...Glass