>>1262018>Where can I see a more thorough review of mechanical pencil lead cases?If I was reviewing them, I would simply say "The fancier the case to impress status-seeking buyers, the less chance I want that lead due to the wasted money. Cases with projections only snag on things and waste space.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5282543/