This heat-resistant glass is very useful. Glass artist: Noriaki Watanabe, Heat-Resistant Glass Tumbler (Noriaki Watanabe) φ 95 mm h 105 mm This is a powerful tumbler with blue streaks. It can be used for hot water-based drinks or cold drinks. The weight is also moderate, providing peace of mind. Purchased at Matsuya in Ginza. Although the frequency of use was occasional, it is still beautiful. There are some faint marks, like those left after water has dried, around the rim, but not everywhere. Overall, it is still beautiful. The bottom of the sixth photo is likely the artist's signature. I will ship using recycled materials. I often use Yu-Yu Mercari delivery. I have other items for sale as well. #YO224 Thank you for your consideration. #Kimura Glass is here #Tumbler #HeatResistantGlass #NoriakiWatanabeGlass