I have a border collie mix about 10 months old. She loved this but had the cover chewed off within 3 days. Granted she's still in the "chew stage", but I hoped it would have lasted longer.

I have a pit bull and this toy didn't last a week. I thought it would be durable because kong made it but he destroyed it within a week of playing with it.

I have bought several of these & they always last a long time. This dumbbell is pretty big but is perfect for my pittie mixes. Very durable & even stay good if left outside. Love the Kong toys they are very durable & stand up to my rambunctious dogs.