Innovation: a brand-new interactive experience of children's toothbrushes, matching the characteristics of children's teeth at various stages of development. 1. User's demand: toothbrush suitable for children's dental health; Let children brush their teeth consciously and fall in love with brushing their teeth. Satisfy children's curiosity to explore the world. 2. Technical feasibility: food grade silica gel material, high temperature disinfection without deformation; Simple modular brush head design, interactive; Cylinder planting bristle technology. 3. Commercial continuity: the brush head can be replaced with economic benefits; the shape of the green design concept is implanted, and the decoration is appropriate; the integrated design from gum toys to children's toothbrushes.