Bluestem Dental Chews help improve oral hygiene for small dogs that weigh 5- 20 lbs. The density and texture of the chew penetrates 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 & corn free, low in calories & fat, and have no artificial colours. They contain a natural preservative and chicken flavor that dogs love. Bluestem Dental Chews help reduce plaque and tartar while promoting fresh breath.