this review title is: the one good thing they are inexpensive and the content is: i still cannot figure out the toothbrush with three heads the design did not make sense to me if my dog could speak i am sure she would ask why do you stick this weird thing in my mouth take it out 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.