Colgate Zig Zag Black comes with multi-angle zig zag bristles designed to reach deep between teeth to effectively remove plaque. The end rounded medium bristles feel gentle on teeth and gums. This brush has a soft tongue cleaner which gently removes odor causing germs to freshen breath. The rubber cushioned handle provides comfortable grip & superior brushing control. Its flexible neck reduces pressure on gums and massages them for a comfortable cleaning experience. Colgate is the No. 1 toothbrush brand recommended by dentists.