This is the perfect choice for strong, aggressive chewing dogs. This durable, hard nylon bone provide good chewing exercise while helping to clean teeth and control plaque tartar build-up. The Nylabone bone is not intended to be ingested. Regularly inspect your dog's bone for excessive chewing damage. Long lasting dog chew toy challenges even the most aggressive chewers and discourages destructive chewing Ridges and nubs help prevent plaque and tartar buildup as dogs chew Dog chew toy features an irresistible taste throughout that dogs love Helps with: Training & Reward Weight Management Dental Care Stress & Anxiety Boredom Destructive Chewing Available in the following sizes: Regular (up to 25 lbs) Wolf (up to 35 lbs) Giant (up to 50 lbs) Souper (over 50 lbs)