• Radiant White Oral-B iO Series replacement brushes with powerful yet gentle micro-vibrations and a round design inspired by dentists. • Provide a daily professional clean feeling and help remove up to 100% more dental plaque than a regular manual toothbrush. • Angled bristles combined with polishing petals to reach all areas, gently polish, and remove surface stains for a brighter smile. • Bristles fray to indicate the optimal time to replace the brush head. • It is recommended to change the brush head every 3 months for best results and to prevent plaque buildup. • Exclusively designed for Oral-B iO electric toothbrushes, ensuring superior brushing power. • Do not use after 3 months to maintain oral hygiene and avoid gum damage.