Spunky Pup Squeaky Tennis Balls - Squeaky Tennis Balls by Spunky Pup feature a durable embedded squeaker. Balls are dog-safe with no harmful gas fill. No abrasives used in the surface means they are safe for your dog’s teeth. 3 balls to a pack. Features Durable squeaker Dog-safe balls with no gas fill Non-abrasive surface is safe on dogs’ teeth Sized for small and medium dogs More durable squeaker than comparable squeaking tennis balls. Squeaker can’t be pushed into ball