8 pcs. (2x4) of brush heads to E-Cron® teeth. Replacement Oral B Precision Clean / Flexisoft (EB17-4). Fully compatible with electric toothbrushes Oral-B models: Vitality Precision Clean, Vitality Floss Action, Vitality Sensitive, Vitality Pro White, Vitality Precision Clean, Vitality White & Clean, Professional Care Triumph Advance Power, Trizone and Smart Series .
Product conforms to the description that had made my dentist! To try them is to love them, in fact I'm not ready to go back to the manual toothbrush Thank you for the rapidity of delivery, packaging and congratulations to the competence of amazon