The KHBD Action-Cross toothbrush head has a rounded shape inspired by professional cleaning tools to clean tooth from the KHBD Action-FLOSS replacement head, incorporates mikro + impuls filaments that penetrate in depth between the teeth to eliminate the Plate KHBD offers a wide variety of electric brushes that adjust to your personal dental health needs. The replacement heads for oral-B toothbrushes are compatible with all oral electrical brushes handles, except Oral B Pononyic.