The Oral-B Advanced Whitening Charcoal toothbrush whitens teeth in 1 week by removing surface stains. Multi-level bristles provide a deep clean while the tongue and cheek cleaner on the toothbrush remove odor-causing bacteria. The Oral-B Advanced Whitening Charcoal toothbrush features charcoal infused bristles. This medium bristle toothbrush has polished end-rounded bristles that are designed to be gentle on your teeth and gums while providing an effective clean. For the best results, change your toothbrush regularly. A new toothbrush cleans 95% better in hard-to-reach areas*. This pack of Oral-B toothbrushes include different colors of toothbrushes for households with multiple people or stocking up. Oral-B is the #1 Toothbrush Brand Used by Dentists Worldwide. *vs one 3 months old; research with a flat trim toothbrush