I also switched the children's toothbrushes to copper ones.
I'm not good at brushing my teeth, so I'm actually using this instead.
I think brushing my teeth is more effective within the time limit.
진동칫솔이 아이들한테는 더 좋기는할것 같아요~^^
전동 칫솔로 사용 해주면 깔끔하게 될것 같아요