구시렁
치석제거가 잘 되니 좋네요
I started using it because an acquaintance gave it to me as a gift.
Now that I've started using this, I can't use the dental floss sold in stores.
I'm hesitant because it's a Japanese product, but I haven't found a good alternative yet.
First of all, it removes tartar effectively.
I recommend it.