Both of my Pit Bulls adore this toy.  It's a little shorter than the regular one, but still goes a good distance.  It holds regular tennis balls and anything that size.  When I first started bringing my new dog to the dog park, the Chuck-It was my way to get his attention, and for him to follow me to the exit to leave so I didn't have to chase him down.  It's like it hypnotizes my dogs.  Gives them fabulous exercise too!