Hartz Chew N Clean Dental Duo is a long lasting chew toy and treat all in one. Its constructed from durable materials that withstand mild to moderate chewing. Enriched with a delicious, edible bacon flavored center and the Hartz DentaShield technology, the Dental Duo reduces new tartar formation by bonding with components in your dogs saliva. The chewing action helps reduce tartar build-up, freshen breath and promote healthy gums. Chew toy and treat all in one Durable nylon shell combined with a tasty bacon flavor For mild to moderate chewers Colors vary Remember to supervise your pup with any toy.