Soft bristles with a thin tip of 0.01mm Deep and gentle cleaning Get a deep, gentle clean using the Colgate Slim Soft Charcoal toothbrush. Thanks to its 0.01 mm fine-tipped bristles, the toothbrush penetrates hard-to-reach areas, cleaning deep between the teeth and along the gum line for a healthy smile. Instructions for use: Dentists recommend replacing your toothbrush every 3 months. Ingredients: -