Our dogs love peanut butter we have a boxer and a golden,when we reach for the kongs you have to make a clear path because they will run you down.The boxer is super funny she will hop in circles until you put her treat on the floor. I also found that if your babys seem to clean thoes kongs out real fast put them in the freezer over night with the peanut butter in them. It's a really good treat in the summer for them.