Thank you for viewing! This item is a Karin Burl mechanical pencil (0.5mm) made in collaboration with Kobo Setsuri, using Kato Kinzoku 202. It can also be changed to a ballpoint pen. Gold hardware +1000 yen Black hardware +300 yen Karin Burl is a burl material harvested from a part of the root of the Karin tree, and it has been popular as a material for high-end crafts since ancient times. It has a very beautiful grain! Please refrain from purchasing if you are looking for perfection, as this is a handmade item. A wood cube will also be included!