This is the best product if you are sick of replacing your dogs other tug toys. My dog, Ben (8 months old but weighs over 30kg) and I play tug daily as part of his obedience training, and this toy has withstood the worst punishment. Ben not only bites down hard, he also shakes his head and tugs hard, and this toy does not have one puncture or tear in it. We have had it now for a few months. Thank you so much for creating such a hardy product. I will be back to buy some more soon.