Product Description The wide and slim head design reduces leftover plaque. The toothbrush has a wide head, which minimizes plaque residue even for children who are not accustomed to brushing. The head is 30% thinner than conventional models, making it easy to maneuver in small mouths and reach tight spaces and back teeth. The outer bristles are soft, allowing for thorough cleaning between teeth and gums while being gentle on the gums. Suitable for ages 2 to 6 years. Bristle firmness: soft. Bristle material: nylon. Handle material: polypropylene. Heat resistance: 80 degrees. Made in Japan. Individual package size: 33×230×15mm, 15g. Caution for Use Brush gently to avoid harming the gums. Replace the toothbrush when the bristles become splayed.