This is a Rotring Rapid mechanical pencil. The lead diameter is 0.5mm, and the barrel color is black. This product is no longer in production. Although it is new and unused, it has been on display in a store for a long time, so there may be some minor scratches. Also, there is no box. If you would like to use the post office/convenience store pickup option, I will change the shipping method, so please comment in the comment section before purchasing. rotring rapid mechanical pencil sharp pencil discontinued