General description Our replacement toothbrush heads are crafted with high-quality filament, recognized in the oral care synthetic filament industry for over 70 years. The bristles are made from American Thynex nylon, ensuring a gentle yet effective brushing experience. The innovative round head design provides 360-degree full coverage of teeth, while the small and soft design allows for deep cleaning and care for gums. With high-density bristles utilizing irregular hole hair-planting technology, the amount of bristles is increased by 40%, enhancing the efficiency of cleaning stubborn stains. It is recommended to replace the toothbrush head at least every 3 months. Technical specifications Color: White Material: Plastic + bristles Package Contents: 9 x electric toothbrush heads Measurement allowed error: +/- 1-3 cm Other information