I gave this toy to my 50 lb lab mix, Maddi, a few days ago, with an everlasting treat in each end. She's been gnawing and playing with it ever since, and she still hasn't gotten in to the treats yet. I bought the large, and it's a little too big for her, but she doesn't seem to mind. She can't pick it up until the everlasting treats are chewed almost all the way through. It's given her plenty to chew on though. She hasn't looked at anything else since she got it.