It's interesting for my dog, my little dog likes to play with it! When I'm at work, he keeps playing! The ball is extremely elastic, so the momentum is constant, which helps. However, I mainly play with this as a tug-of-war toy. It is very durable and can be tensioned with no signs of wear and tear and has a service life of about one year. If you drop the ball, it will bounce for a while, like he doesn't even realize I'm gone! Then, when the family comes back, it's easy to let go from the floor,...