bluestem™ Dental Chews come in two sizes to accommodate both small and medium to large sized dogs. They are designed so that the density and texture of the chew allows your dog’s tooth to penetrate right up to the gum line, while the ridges on the spokes work to remove plaque and tartar on the entire tooth. The chews are gluten free, wheat and corn free, are low calorie and low fat, have no artificial colours, and contain a natural preservative and chicken flavor that all dogs love.