This replacement head is designed for the Oral-B iO electric toothbrush series, featuring the Ultimate Clean brush head. Engineered for superior plaque removal, the Ultimate Clean head oscillates, rotates, and pulsates to deliver a deep and thorough clean. The unique combination targets hard-to-reach areas, providing a dentist-clean feeling every single day. Ensure optimal performance by replacing your brush head regularly according to manufacturer recommendations for consistent oral hygiene results.