• Replacement head with a small round head designed for deep cleaning and effective plaque removal. • Super-fine soft bamboo charcoal bristles with high absorption capacity and moisture resistance. • Antibacterial properties that help keep bristles dry and reduce bacterial growth. • Deep cleaning thanks to the ultra-fine diameter of the bristles that penetrates difficult-to-reach spaces. • Protects gums from damage while improving cleaning power compared to traditional brushes. • Contains active bamboo charcoal C ions that help whiten teeth healthily. • Compatible with Oral B rotary electric toothbrushes.