• The package includes 10 toothbrush heads with colored rings to easily distinguish each head. • Effective and deep cleaning in hard-to-reach places such as the gum line and around the root. • High compatibility with various Oral-B electric toothbrushes, including ProfessionalCare, Triumph, and TriZone series. • High-quality soft bristles made by Dupont, flexible and ideal for sensitive and inflamed areas. • Blue indicator bristles that fade to warn when head replacement is necessary.