Set of 3 Happy Birthday Rainbow-Colored Tennis Balls: Enjoy a trio of vibrant, eye-catching balls to keep your dog entertained during playtime. Squeaky Fun: Each ball features a built-in squeaker to entice your dog and enhance interactive fetch sessions. Ideal for Interactive Play: Whether indoors or outdoors, these squeaky tennis balls provide hours of engaging fun and exercise for your furry friend. Standard Tennis Ball Size: Sized just like regular tennis balls, making them perfect for dogs of all breeds and sizes