![Hi! I need some help. My mechanical muji pencil suddenly stopped working. I thought it ran out of graphite but when I checked a little rubber thing fell of. Any idea hoy Hi! I need some help. My mechanical muji pencil suddenly stopped working. I thought it ran out of graphite but when I checked a little rubber thing fell of. Any idea hoy](https://preview.redd.it/75viv8mzotv41.jpg?auto=webp&s=f6971555f17be0792a5fbc725cdfba6ea18c4f29)
Hi! I need some help. My mechanical muji pencil suddenly stopped working. I thought it ran out of graphite but when I checked a little rubber thing fell of. Any idea hoy
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