The PetSafe Tennis Dog Toy Balls are perfect for playing fetch with your dog. These durable balls are made of high-quality materials that will last you and your dog many years. The balls are standard 2 5/8 diameter size, making them easy to throw and catch. The soft felt covering helps prevent wear on your dog’s teeth. With 3 balls included, you’ll always have a ball handy for games of fetch. All 3 balls can be used with the PETSAFE AUTOMATIC BALL LAUNCHER.