FUN DESIGN: The Interactive Ball Roller is an automatic ball catcher that can be used by both dog and owner, or just for the dog. Put a mini ball into it, the ball will come out from the bottom mouth automatically. Material: Made of ABS plastic, can be played indoors and outdoors. Includes high quality pet tennis trainer, 1 tennis PERFECT DOG GAME: Automatic ball roller trains your pet’s behavior and keeps it alive making it the game perfect for playing with your pet indoors or outdoors< /p> Product Description Description: This game is ideal for activating your dog’s brain and teaching him to understand gripping/handling scenarios. Warning: The ball is unrolled! instead of jumping! Features: Does not take up space: can be easily placed indoors or outdoors, suitable for free corners. Your dog will love it. Ease of use: This ball game couldn’t be easier to use. The innovative design allows your dog to play the game alone and he can be rewarded by simply picking up the ball and putting