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Title: Not as strong as most kongs
Review: My 80 lb lab-mix liked this thing in the beginning (it was hard for me to stuff, though), but started chewing off the ridges. Now he's nibbled down the two ends. I have many MANY other Kong toys (MANY!) and this one and the tug toy were, by far, the most prone to wear. Add to that the difficulty stuffing it and I don't think I'd buy it again.
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