Works as intended
I use the bigger head for teeth I can see and reach easily, while the smaller head is for those harder-to-reach corners. My puppy tolerates the toothbrush; he doesn't shy away from it whenever I show it to him, but he does like to push it out with his tongue when in use. I think he would be more comfortable if I used one of those silicone finger brushes.
Rating: 4 stars