"Hamieru" is a sonic toothbrush that can check for plaque and unpolished teeth with this one. ・ Built-in special LED light, which is a patented technology, so dirt and plaque will glow pink without using dyeing agent. ・Do you ever feel anxious about whether your child's teeth are brushing properly? If you are "visible", you can see it if there is any unpolished residue every time you brush your teeth. ・ By removing dirt on the spot, you can always have beautiful teeth. The brush is made of high-quality, super-soft material made by DuPont, which is gentle on the teeth and gums of small children. ・ The main body comes with two types of brushes, one for 0 ~ 3 years old and one for 3 ~ 5 years old. As your child grows, you can use the right brush. ・The cute penguin grip is easy for children to hold, and you can enjoy brushing your teeth.