Is it a comparison of unit prices or a sense of value?

today、Ballpoint pen ink is not flowing well。It was something I didn't use much.、I bought a replacement lead。It's around 90 yen。

Personally, I think it's extremely cheap, what do you think?。I think ballpoint pens are of high quality.。It seems quite difficult to make the ball for the pen tip.。You need technology。

now、Considering that masks cost 70 or 80 yen each, I think it's cheap.。It seems like it would be a hassle to make a mask.、I think ballpoint pen lead is worth it if you think about throwing it away in a few days.。

I would like to write about it as soon as it arrives.。