4 pack replacemnt head for oral B io Black

Features

• Clinically confirmed: removes up to 100% more plaque than a manual toothbrush for a sensational mouthfeel
• Bristle-in-bristle bundles reach deep between teeth at a 16 degree angle
• The iO technology combines the unique, round brush head with gentle micro-s of the iO toothbrush for the best cleaning performance from Oral-B
• Only compatible with Oral-B iO electric toothbrushes
• Dentists recommend: change brush head every 3 months for optimal cleaning performance