After one week my dog went to the vet with an intestinal blockage. Vet said that he sees this often with these chews. They are meant to be well chewed as the chews are very dense. If your dog doesn't take the time to really chew them (as most dogs don't), then it can end up getting stuck in their system.
These are the right size for my little Shih Tzus, but they don't seem to like them as much as the Petite ones. I wonder is the flavor different in some way. I got the Petite first thinking they would be the right size and missed the Teeny ones. So, when I ordered again, I got the Teenies. For some reason, my dogs don't like them.