Like a lot of toys, you'll find some dogs love these and some are not impressed. But my young dog who just LOVES her toys the bigger, the better, really loves the large size of these, because unlike a solid ball of this size, she can easily grab it and run around with it, and it's lightweight enough to not slow her down. It's been outside for while and hasn't broken down in spite of being out in the elements, but if your dog is a chewer, it's definitely not a toy to leave out where they can get at it. For dogs that won't chew non-edible things, you can push a dog biscuit inside for a little extra fun.