Akebono Kobo Keyaki (Japanese Zelkova) mechanical pencil. The lead diameter is 0.5mm, and the clip can be removed. It's a slide-knock type, but there's almost no wobble at the tip. It's similar to Nohara Kogei pens, but they are not compatible. I think it's lighter and easier to use daily than Nohara Kogei's wooden shaft mechanical pencils. Since the wood type is Keyaki, it's a pen that allows you to enjoy the aging process as you use it. I'm sorry, but I'm not considering lowering the price. Thank you for your interest. Type: Mechanical pencil body Body material: Wooden shaft