The Hyper Products Mini Replacement Balls are not the regular tennis balls. These are mini sized tennis balls for the Mini Hyper Dog Ball Launcher that are sold separately. These toys can be taken to a person's backyard or park and he or she can play with his or her dog whenever he or she wants. These are completely appropriate for little dogs those who are having small mouths such that the dog can carry these balls with ease. This unique dog toy does not need any assembly and are hassle free which is the best part

Hyper Products Mini Replacement Balls

• Available in a set of 4 balls
• Contains mini sized replacement tennis balls
• Assembly not needed
• Is an interactive toy