This Review Title is The one good thing? They're inexpensive. and the content is: I still can't figure out the toothbrush with three heads, the design didn't make sense to me. If my dog could speak, I'm sure she would ask: "Why do you stick this weird thing in my mouth? Take it out!"<br /><br />I wish there is a video explaining the design of those three heads, and how to use it properly..There are other information for this review, one is This reviewer did purchase it and the other is 0 people think this review is helpful.