It's an acne care tool.

I've had acne since middle school.

Actually, there was nothing like this back then.

So I used to take the refill out of a ballpoint pen and use the round part to pop pimples.

Ah, if only products like this had come out back then and people had a sense of hygiene... T_T

Even now in my 40s, I still get acne occasionally.

This is a product I purchased.

It's stainless steel, so it's great that you can boil it thoroughly.