This is a Craft A Karin Ko-boku 0.5mm mechanical pencil. I used it for several months and applied oil once a month, so it's in good condition. This is a pen that allows you to enjoy the unique characteristics of Karin Ko-boku. Please feel free to ask if you would like additional photos or have any questions. The eraser is unused, but there is some dirt. Operation has been confirmed. The lead will be removed before shipping. Please purchase only if you understand that this is a used item. Please note that returns and refunds are not accepted.