\ \ the oral-b radiant white brush head combines a dentist-inspired round head with a special polishing attachment to gently remove surface stains and achieve whiter teeth from day one. \ \ features \ \ the toothbrush is designed to clean teeth and gums, while the toothbrush is designed to clean teeth and gums. \ the oral-b io radiant white brush head combines perfectly angled bristles and polishing attachments for enhanced cleaning and whiter teeth. \ io technology combines oral-b's unique round brush head with the gentle micro-needles of the io handle for superior cleaning performance. \ the oral-b io brush head is specially designed to fit only the oral-b io electric toothbrush. \ \ \ precautions \ \ \ dentists recommend replacing your toothbrush approximately every three months or when the bristles become thinner. \ \ \ with the oral-b radiant white brush head, your teeth will be white from day one. \ \ instructions for use \ \ remove the previous replacement head by gently pulling it upwards from the handle of your oral-b electric toothbrush. \ after you have taken a replacement head out of the packaging, place it in the same place, surrounding the metal blade and gently pushing it towards the handle. \ dentists recommend replacing your toothbrush approximately every 3-4 months, or when the bristles fade. \ \ \ \