General InformationNew Bristle Technology: Oral-B Cross Action brush head turns from green to yellow, indicating when it is time to change. Features precise angles that target plaque to remove up to 100% more plaque vs. a regular manual toothbrush. The shape of the brush head is designed for optimal tooth coverage. Bristles reach deep between teeth to remove plaque and leave your whole mouth cleaner than a regular manual toothbrushSize: 5KEY FEATURES• Features perfectly angled bristles to get deep in between teeth and remove plaque• Bristles clean tooth by tooth to help remove up to 100% plaque• Angled bristles set at 16 degrees to effectively clean along the gumline• Compatible with all Oral-B rechargeable handles (except iO Series/ Battery/Sonic brushes)• Oral-B, 1 Toothbrush Brand Used By Dentists WorldwideWarningsDo not use on children under age 3. Replace brush (head) every 3 months or sooner if brush head becomes worn