This is a set of glass pens from TAG STATIONERY, a stationery and miscellaneous goods manufacturer based in Kyoto.
A simple and easy-to-write glass pen made from hard glass used in chemistry. Laboratory glass is extremely hard and durable, highly transparent, lightweight, and heat-resistant.
The size is slightly smaller than the average length of Japanese writing implements, making it easy for men to grip and enjoy writing smoothly.
*Please note that as these are handmade, there may be individual differences in shape.