울이야
치실은 필수죠 너무 귀여워서 아이가 좋아하겠어요ㅎ
This is children's dental floss that I use with my child.
Children's dental floss is comfortable to use because it has a side holder and the floss is attached in the middle, so it doesn't slip when used in between. Eventually, the whole family started using it together, and since the end is held, it became convenient to use as a single-use item.
I saw three packs of 80 online for about 10,000 won, so it's cheap and good.