- Replacement brush heads designed for Oral B iO Series 3, 4, 5, 6, 7, 8, 9, and 10 electric toothbrushes - Includes 8 white brush heads, providing more than one year of use - Made with American DuPont bristles, soft and durable for gum care - High-density bristle transplant technology for a superior brushing experience - Multi-directional, dual-height brush head that effectively removes stains and dental plaque - Allows deep cleaning from different angles and adapts to the shape of the teeth - Recommended by dentists: replace the brush head every 3 months for optimal hygiene - Easy to install and compatible with all indicated Oral B iO models