General Information - New Bristle Technology: Oral-B 3DWhite brush head turns from green to yellow, indicating when it is time to change. Features a polishing cup designed to help remove surface stains while bristles clean away plaque, and is ideal for advanced cleaning and whitening. It even has the power to whiten teeth starting from Day 1 by removing surface stains - KEY FEATURES - Advanced cleaning to help you achieve a whiter smile - Features a special polishing cup that gently removes surface stains - Whiter teeth from Day 1 by removing surface stains - Compatible with all Oral-B rechargeable handles (except i - O 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