This is a black persimmon mechanical pencil. The lead diameter is 0.5mm, and it's compatible with PG-METAL, so you can change the lead diameter to your liking by purchasing commercially available leads. It's been sitting on my desk for a long time, so I'm listing it to send it to someone who will use it. It's a masterpiece made with extreme care, with no step between the metal and the wooden shaft. The pencil itself has a low center of gravity and is easy to handle, allowing for enjoyable writing while experiencing a satisfying "clicky" feel. Black persimmon can lose its grain pattern when oil is applied, so I think it's best not to do oil maintenance. I'm sorry, but I'm not considering lowering the price. Thank you for your understanding. Type: Drafting mechanical pencil Body material: Wooden shaft