세일러123
치간칫솔쓰니 잇몸에 괜찮은거같더라구요
This is an interdental brush I bought at Daiso.
My dentist told me I absolutely have to use dental floss, but I find floss uncomfortable, so I am using interdental brushes instead.
If you are a first-time user, I recommend starting with the smallest size.
The product I purchased is the type where you only replace the interdental brush part.
But it was a bit uncomfortable, so I'm planning to buy a different one next time.