Review (1/5): the brush head is about 1/3 shorter than the one I bought from inside a store
I waisted my money. Opened it and it was identical to my worn out one, except the brushing head was noticeably shorter, by about a third. I thought, they downgraded the product, but later, found them inside a store and those were the size as my old one. I would think this item was a child's size, but it is not advertised as such and the handle is the same length as my other tooth brushes.