Healthy and strong - our bristles are thicker and longer than ordinary bristles, allowing you to handle the most difficult problems with soft nylon, so as to obtain more gentle bristles by reducing damage to the hair. It can prolong the life of hair and make it healthy, strong and energetic. No longer chilly - during washing, towel/air drying and outdoor activities, the negative ions on the hair will be washed away, thus disturbing the natural state of the hair, leading to curly, static and dry. Heat resistant - no matter what the hair style and length are, they will not have the destructive effects that thermal tools may cause, creating a smoother and smoother appearance for your hair. Ergonomic handle - Each time you brush your teeth, you can enjoy the comfortable and safe grip brought by the ergonomic design