So far it’s kept my dog really busy. We were even able to play an entire board game last night while he played with it. He did learn to unscrew it right away. So I made sure that it was tight…but now I can’t open it. He’s only had it one day and it’s already looking pretty beat up. Puppies chew. He really loves this toy, I’m just not sure how long it will last or if I’ll be able to open it again.