WhimzeesStix Dental Dog Treat is a fun, all-natural recipe for large dogs. It helps to remove plaque and tartar build-up and reduces bacteria that causes bad breath. Designed in a knobby shape this treat provides three times longer chew time and maintains clean and strong teeth. They're free of gluten so it's a great option for dogs with sensitivities, and they're made with natural ingredients that have vitamins and antioxidants.