Product Information • Brand/Shape: Tajima Glass Wine Tumbler • Material: Handmade Edo Glass • Base Design: Special circular shape (designed to be difficult to tip over) • Transparency: Highly transparent crystal glass Thank you for viewing. This wine glass allows you to easily enjoy "swirling," which brings the wine into contact with air and enhances its aroma, simply by gently swirling the glass. Its unique design makes it difficult to tip over, allowing it to naturally spin on the table. The "Wine Tumbler" is a popular item that has received the Tokyo Governor's Award at the Tokyo Challenge Awards and various awards at the Omiyage Grand Prix. I think it goes well not only with red wine, but also with whiskey and brandy. I purchased this over 10 years ago and have kept it in storage, unused. The outer box has some age-related stains. I opened it for photography and lightly washed it once, but I couldn't repackage it as neatly as before, so I would appreciate it if you would consider it for home use.