Features: Toothbrush heads are designed for Mijia T100 Sonic Electric Toothbrush. Ultrasonic electrical toothbrush can efficiently get rid of plaque and reduce gum necrosis. Imported smooth brush with high-density planted bristles Using DuPont basic tynex bristles 0. Round smooth edge, reducing damages when cleansing * Vacuum packaging to fulfill scientific security standards. Selected high-end materials produces replicate polished influence for smoothly cleaning.