The Oral-B iO Radiant White toothbrush head combines a dentist inspired round brush with polishing elements to gently remove surface stains for whiter teeth starting from day one. Polishing petals Polishing elements are precisely positioned to contact all areas of the tooth and leave every surface looking radiant white. Whitening clean Perfectly angled bristles combined with polishing petals gently remove stains to deliver an effective whitening clean. Replace regularly Change brush head when the iO toothbrush notifies you to get back to 100% cleaning efficacy.