This is a refill pack containing two small, soft brush heads designed for the Silk'n ToothWave Electric Sonic Toothbrush, featuring DentalRF Technology. These replacement heads ensure that you maintain optimal cleaning performance with your sonic toothbrush. The soft bristles are engineered for gentle yet effective plaque removal, making them suitable for users with sensitive gums or those who prefer a lighter touch. Regular replacement of brush heads guarantees hygienic brushing and sustains the high-frequency vibrations necessary for a thorough clean.