| Philips Brush Head Replacements Applicable to: Philips HX3, HX6, HX9 electric toothbrushes Service life: 3 months, twice a day, 2 min each time Functions: C3: Daily clean type, remove 10X more dental plaque than manual toothbrush G3: Gun care type, improve senstive gum health status 7X better than manual toothbrush W3: Teeth whitening type, remove 2X more teeth stain than manual toothbrush in 3 days Features: 1. 3D cutting bristles fit teeth curves, cover more area, improve brushing efficiency 2. Grind bristle tips to round shape, cleaning without hurting gum or enamel 3. Wrapped with soft rubber, absorb extra pressure, protect sensitive gum 4. Color-changing bristles, when 1/3 of | |