Note from @jojoswishlists4everI recommend this product. Yes it is just a ball But one that will be well loved. When we first got this ball for our puppy the tennis ball in side made the toy move in a realistic entertaining way. This helped our puppy through teathing and she still enjoys chewing on it every night. The tennis ball made it to the park before being *over played with* by another dog ( destroyed ) even so two balls for the price of one. And willow is due for a replacement of her favourite toy soon.