My sister purchased these for her pup & mine -- They can last if you keep your eye on them and put them away after using them.
If we left the ball with the pups -- they destroyed it into tiny rubber pieces. Which can be a con for some pawrents (swallowing it and/or cleaning up the bits) They aren't really super chewers but there's something about these balls that made them LOVE to shred! Therefore, it all really depends on your pup -- worth a shot regardless. We're hoping that BARK sells the blue rubber spiky balls -- now that'd sure be a bulk buy!