Features: HIGH QUALITY: Made from rubber and plastic, durable for chewing, safe for the dogs. FIVE BALLS: Includes treat dispensing squeaky ball, squeaky spike ball, dental cleaning ball, squeaky tennis ball and squeaky rubber ball. Give them to your dog and let it decide its favorite. SQUEAKY DESIGN: With squeaker inside, the balls can attract dog\'s attention and keep it busy, so to reduce dog\'s anxiety and boredom. DENTAL CLEANING: The dental cleaning ball can be used as toothbrush to clean the dog\'s teeth after eating. Just put some treat in the ball and let the dog chew it.