Hartz Chew N Clean Dental Duo Bacon Flavored Dog Treat and Chew ToyHartz Chew N Clean Dental Duo is an X large 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. X Large