Choosing the right size chew toy for your dog involves considering the size of your dog's mouth and their chewing style. Select a toy that is large enough to avoid choking hazards but small enough for your dog to chew comfortably. For aggressive chewers, opt for a toy that is durable and slightly larger to withstand their vigorous chewing without breaking apart. Always avoid toys with small detachable parts that could be ingested. Monitoring your dog's interaction with new toys is essential to ensure their safety and enjoyment. For specific recommendations tailored to your dog, consult a veterinarian.