Practically the Brush Head Quarter is all, especially for a large family. Everyone can be brush it stuck and you only need a hand driving part. With a smaller family can put this additional brush with it. So they are not around somewhere in the closet and you use them sometimes. I bought the Brush headquarter directly on the website WILIWAK since he was a small little cheaper. And yet, this toothbrush holder is way too expensive. For a little bit plastic were 6 - to 8, - Euro have been sufficient. Well, it is still very convenient. I will see how he reinforced in everyday life.