Oral-B Pro-Expert Pro-Flex manual toothbrush with an innovative design has two flexing sides that deliver one superior clean. The flexing sides follow the unique curves and contours of your teeth to remove up to 34% more plaque along the gumline when compared with a regular manual brush. Pro-Flex manual toothbrush works gently on enamel and gums, reducing gingivitis to deliver an outstanding, thorough clean. Brought to you by Oral-B – the #1 brand used by dentists worldwide.