Chewing helps remove plaque and tartar for cleaner teeth. Rigid outside. Chewy inside. The line of Hartz Dental Denti-Chew consists of two unique textures combined. Each chew starts with a very tasty rigid outer layer that encourages chewing which helps to remove plaque and tartar for cleaner teeth and freshen breath. The softer center is made from a delicious filling which your dog is sure to enjoy. Chewing helps remove plaque and tartar for cleaner teeth. Chewing helps promote clean, fresh breath. Hartz Dental Denti-Chew can be used in addition to regular veterinary visits to maintain your dog's dental health. Made in USA.