3pcs Replacement Brush Heads for Sonic Electric Toothbrush, RST2090

About the product
1. Innovative wave bristle design for deep and complete cleansing
2. High quality nylon bristles for superb brushing sensation
3. Ultimate to maintain healthier teeth and gum
4. Exclusively designed for use on sonic toothbrush RST2030, RST2031, RST2050
5. Dentist clinical recommendation: Changing your brush head after three months use