1. Soft bristles electric toothbrush heads 2. Suitable for Philips Sonicare P-HX-6014 HX6730/HX6322/HX3226/HX9192/HX6972/HX9172/HX6921/HX8962/HX6275/HX6231/HX6897/HX6512 3. Dentists recommend replace brush head at least once every 3 months 4. Soft bristles can also reduce damage to gums and oral tissues 5. Efficient cleaning ability: Due to the high refresh rate and strong vibration force of electric toothbrushes, combined with soft and densely arranged bristles, they can remove food residues, plaque, and stains in the oral cavity more quickly and effectively
