Looks big, but the brush head is extra small. It's actually a sensation: over 7,600 filaments are packed closely together. This allows for particularly precise cleaning. A class of its own: it is actually a children's toothbrush, the CS smart with its small brush head. However, adult testers are also thrilled: they say it allows for extraordinarily precise brushing and is wonderfully fine. And this should have been clear when Curaprox equipped it with so many fine Curen filaments. Designed for children aged 5 and up, it also delights adults. Extra small brush head for extremely precise cleaning. Octagonal handle for the right angle. Incredibly gentle, gentle, and effective. Colors may vary.