I bought the 9" Jolly Egg for our Pyrenees-Pit-German Shepherd mix because he is very good at destroying toys. The first day he had it, he spent nearly an hour trying to figure out how to pick it up. After he finally figured it out, he would get it in his mouth and it would shoot out of his mouth after about 1 step. It was hilarious! There are a few chew marks on the tip. However, it's been 4 and a half months and still in good shape and if it lasts more than a day in my house it's a 5 star in my book. He still plays with it and it cracks me up every time!
I first thought this toy might last for years. My last review was the end of April, it is now the end of July and she has completely chewed the end off. Keep in mind, I am on here buying a replacement today. She adores this toy and I still feel its great. I just wish it were sturdier.