I have a dog that loves to run and play ball.  With this product unlike others that say they do the same thing I can throw the ball at least 500 feet and it gives my Vizsla a good work out.  We still play ball for a long time but this saves your shoulder from pain and your hands from the saliva ball.  I am thankful for the friend that turned us on to Chuckit Products.  Also you do not have to have the chuckit balls to throw you can use regular tennis balls.  However if you want the longevity of the ball I would by the rubber chuck it ball to keep launching.