Thank you for viewing. This is a Newmann mechanical pencil for a planner, now defunct, with a checkered pattern, 0.5mm. I am selling it to organize my collection. The checkered pattern on the pen is not printed, but has actual bumps and provides a non-slip grip. The horizontal lines of the checkered pattern are a single spiral that runs from the top to the bottom of the pen, which is also nice to look at. It is a Showa retro item. The eraser on this item is broken due to deterioration. I will include the broken pieces for shipping. I will avoid pushing the eraser all the way in, so I don't think the eraser will get stuck. Operation has been confirmed. Eraser is broken. This pen is now discontinued. #Shiro's Stationery We also offer combined sales. For those who understand, Thank you very much. m(_ _)m