Petsafe Indigo Fresh Floss Bones Grain-Free Dental Chew For Dogs, Large 18 Oz. Long-lasting, textured chew scrubs teeth and gums Helps remove plaque and prevent tartar buildup for cleaner teeth and fresher breath Grain free with irresistible natural chicken and blueberry flavors Rich in antioxidants to help support a healthy immune system Made in the USA Large treats for dogs 60+ lbs. Call, chat, or email with our expert US-basedcustomercare specialists six days a week PetSafe Brand is an industry leading US manufacturer of pet behavior, containment and lifestyle products since 1991, helping millions of people and pets each year.