I bought this toy randomly at a local pet shop, hoping it might be the answer to the intense chewing from my year-old Cannan Dog. He chews through EVERYTHING - Kongs are the only thing he can't kill. I was overjoyed to find that this toy is actually indestructable. He's had it over three months and not even a tooth mark has appeared! I feel like maybe some of the negative reviews may come from 'bad batches'? In any case, I would really recommend this to anyone to try!