ido Flex Hip & Joint Care Dog Bones are a corn free, wheat free and edible chewy dental care treats. Tested and approved by veterinarians Fido Flex Hip & Joint Care Bones are packed with antioxidants, omega fatty acids, vitamins, minerals and essential amino acids. They help support a healthy immune system and enzyme production. These digestible bones help to maintain bone & joint mobility for a healthier, active & happier dogs!