Each ball is 2" in diameter and best for small dog breeds or puppies! Each pack includes 12 small yellow and pink dog tennis balls. These brightly colored small tennis balls make great gifts for any small dog lover! The bright colors make them easy to see. These smaller sized tennis balls make it easier for your dog to put them in their mouth to play fetch! These balls are best to play fetch with and not so great as a chew toy. You and your dog will have lots of fun playing fetch and you'll feel great knowing your dog is getting the exercise they deserve. These balls do not have squeakers inside.