The Hartz Chew ‘n Clean Dental Duo is a long-lasting chew toy and treat all in one! It’s constructed from durable materials that withstand mild to moderate chewing. Enriched with a delicious, edible bacon flavored center that is irresistible. The chewing action helps reduce tartar build-up, freshen breath and promote healthy gums. Perfect for mild to moderate chewers of all ages and sizes.