Brand from Japan: Sunstar. An interdental brush that is gentle on your teeth and hugs! !A curved type that is easy to use for the interdental areas of back teeth that are difficult to brush!A rubber-type interdental brush that is gentle on hugs!Cleans out food particles and periodontal plaque between teeth!Rubber type that does not use metal wires.You can also hug and massage.Comes with a mobile case that is convenient to carry.Fragrance-free.For people who find it easier to get food particles stuck between their teeth.For those who want to take good care of the interdental areas of their back teeth.For those who are concerned about wire-type interdental brushes.How to use:Take out one soft pick.Insert slowly and straight into the interdental area while looking in the mirror.Move it back and forth so that it follows the hug between your teeth.Due to the characteristics of this product, we recommend that you do not reuse it.