Thank you for your interest. This is a "Genrindo Shigyoku Tenshi Gyoku" ink stick, manufactured in 1980. It is an oil smoke ink stick, used for test writing, and weighs just over 47 grams. It is suitable for Kanji with dark ink, and the bleeding is beautiful when used with light ink. - Model Name: Tenho Gyoku - Model Name: Shigyoku - Material: Wood - Accessories: Dedicated case Thank you for looking.