My dogs LOVE these!
I was very skeptical about this product - until my dogs used it.  This really works!  I put an enzymatic toothpaste in the center - and both my dogs liked this immediately.  The product got their hard to reach back teeth - and helped 100% with their breath.  They get these after dinner every night!  Would recommend and purchase again.  Stood up to my one very stronger chewer.
Rating: 5 stars