This is our dog Sukhi playing fetch with my brother. There is a lot of math and physics involved in throwing a ball for your dog. My brother likes to use the ball launcher because it is like an arm extension. He can thrown the ball further even when applying the same force because the radius of his swing is bigger. I’m older than him, have longer arms and am stronger so don’t need the ball launcher for distance. I like it so that I don’t need to touch the slabbery ball she brings back.