We bought a couple of Kong balls today. One was a green colour with blue rings. Doggy took it to the park. Lots of dogs there today, all running around having fun. This Kong ball lasted about 30 minutes before I noticed he had eaten half of it. We thought Kong were a good brand, but will rethink that going forward. Utter junk. Hopefully he barfs most of it up tonight. He has done this before. Stay away from this one