Low wear (brush head is made of medical silica gel, soft, low friction coefficient, long service life)
　　 no deformation (the brush head material has excellent physiological and chemical inertness, no oxidation, no degradation, no deformation)
　　 does not damage the enamel (the bristles are soft, the gums and enamel are not damaged when brushing, and there is no bleeding from the gums)
　　Massage the gums (massage the gums, promote blood circulation in the gum tissue, prevent periodontal disease, gum atrophy)
　　 Antibacterial material (silica gel is non-toxic, odorless, non-water-absorbing, its water absorption is less than 0.015%, non-mildew, high air permeability, no bacteria breeding)
　　 high temperature disinfection (brush head has high temperature resistance, ≤260℃ high temperature steaming sterilization) http://www.dadious.com