The circular brush head is inspired by dental professional tools used for tooth-by-tooth cleaning. Its specially designed bristles can achieve the best tooth coverage, thoroughly clean hard-to-reach areas, and make your smile brighter.Dentists recommend changing your brush heads every 3 months. No need to keep track of the dates though, these electric toothbrush replacements come with identifying bristles that fade when it’s time to move onto the next brush.It is very easy to install, just pop out of your old head and put on the new head easily and smoothly. Before shipment, there will be strict QC to ensure normal work.The round brush head makes the oral b compatible precise heads ideal for advanced cleaning and whitening, while ensuring that your teeth and gums do not become damaged in the process. It's designed for those seeking a gentle yet effective brushing experience.Each brush has a colored identification ring at the bottom so you can share it with family and friends.Compatible with the following Oral B Braun models:Oral B Vitality Precision Clean (All Models)Oral B Vitality Dual Clean (All models)Oral B Professional Care (All models)Oral B Professional Care SmartSeries (All models)Oral B TriZone (All models)Oral B Advance Power (All models)Oral B Pro Health (All models)Oral B Triumph (All models)Oral B 3D Excel (All models)Oral B Plak Control 3D | Duo | TravelOral B Triumph Professional Care (All models)Oral B Triumph (All models)Oral B Sensitive Clean (All models)Oral B White Clean (All models)Oral B Interclean (All models)Oral B Pro-Health (All models)Not applicable to acoustic toothbrush, oral B acoustic toothbrush and battery-powered toothbrush that require AA battery to work.