The Lennox Natural Bully Stick for Dogs is made with only 100% beef pizzle. It comes from grass fed and free range animals and dried to perfection to make a safe and delicious chew. This dog treat has no odor, is all natural, is high in protein and made without any chemicals or harmful ingredients that could make your dog sick. Not only will your pet enjoy chewing this protein-rich treat, but it will also naturally help remove tartar and build-up to promote healthy gums, teeth and overall dental health.