The Oral-B Precision Clean electrical toothbrush heads helps to optimize your oral health. Featuring adaptive X-shaped bristles, this brush head is designed to effectively reach all areas of your mouth, removing up to 100% more plaque than a regular manual toothbrush. Guaranteed to fit all Oral-B rechargeable handles, (except iO and Pulsonic,) this head pack helps to help keep your teeth and gums healthy.