The Oral-B Expert Whitening Pulsar toothbrush is battery operated to gently vibrate and polish away stains for a whiter, cleaner smile. The bristles penetrate between teeth where stain build-up often begins. The vibrating bristles on this toothbrush help break up plaque between teeth. The split head design moderates the amount of pressure applied to your teeth and gums. The Oral-B Expert Whitening Pulsar toothbrush whitens teeth in 1 week by removing surface stains. Power tip bristles on the toothbrush head reach deeper between teeth to remove stains. Oral-B is the #1 Toothbrush Brand Used by Dentists Worldwide. This pack of Oral-B toothbrushes include different colors of toothbrushes for households with multiple people or stocking up. A new toothbrush cleans 95% better in hard-to-reach areas*, remember to change your toothbrush every 3 months. *vs one 3 months old; research with a flat trim toothbrush