Our dog used this (whole with joy) daily. For about 2 years now chewing enjoyment. No more and he tartar is already 4 years old. His white teeth falling all - not only dog lovers - on, daunting. Conclusion: Healthy teeth - healthy dog! Other products not tested too small and chewing bones (Ziemer) have not been so effective in our dog. Collective package over mini Pack profitable. This healthy treat is of course a question of money. Not only our dog recommends dental treats.