Unfortunately, this is a product of "Sogo Rikagaku Garasu Seisakusho," which went bankrupt in March 2025, ending its long history. It was highly regarded in the field of science and chemistry for its high-quality domestic glassware, and it will be very difficult to obtain these products in the future. Although it is a new, unused item, there may be fingerprints from inspection or scratches and dirt from storage. The images are reused.