Stuffed chew snacks with bull’s pizzle & chicken These delicious duvoplus chew! snacks make dogs and their owners happy. These stuffed chews with beef tendon and chicken are perfect as a treat for dogs. They have a chewy outside and a soft inside, are irresistibly delicious and are free from added sugars. Chews wisely…but don’t over-do it! 🙂 Snacks may be offered as a supplement and to add variety to your dog’s daily menu.