Zebra DelGuard Type-GR mechanical pencil 0.5mm Lead Size black

No matter how much force is put, the core does not break. A spring built into the shaft releases the core upward and prevents breakage. It has a two-layered * with different textures at the top and bottom, so you can continue to use your concentration without interruption even if you hold it for a long time. It is recommended when writing a lot, such as exam study. The finger does not get hurt because the * is soft rubber. You will be able to write letters for a long time without getting tired