Purchased on Mercari and only used for a test write. The eraser is slightly dirty. The following is the product description at the time of purchase: Handmade mechanical pencil made from Nikko Sugi (Japanese cedar) wood. Nikko Sugi Namiki (Cedar Avenue) is a natural heritage planted approximately 400 years ago during the era of Tokugawa Iemitsu. It is designated as a "Special Natural Monument" and a "Special Historic Site" by the government. It may be felled due to natural disasters. This is a burl wood taken from the precious and rare cedar trees. The unique flame grain and the scent of cedar provide a sense of healing. Please use this unique pen. 9-13.5mm, 22g, 0.5mm lead.