I really enjoy these. Just got mine in a couple days ago and have put them through a LOT of play, and training when I need them, a little smaller than a tennis ball but not a big deal, great product!!!

This was a great fetching ball, because you don't have to handle the slobbery ball. (I'm a girl), and you could just grab the rope and request a release or drop it. Just don't leave it with your dog if you think she might chew the rope 'off'. It has to be the handler's ball. Other than that I thought it was a great toy. The string also makes for a good distance swing.