Ymmmmm! Dental Chew BonesPetrodex chewable bones reduce plaque and control tartar with patented dual enzyme formula. As the pet’s saliva touches the bone, enzymes are released to activate the anti-bacterial system, washing the entire oral cavity while killing plaque forming bacteria. 97% fat free and contains hicken flavor, and peas and carrots, a natural source of vitamins and atioxidants. 2 pk- each 3 1/2” long.Periodontal disease is the most common health problem in dogs, read Good Dog, Bad Teeth.