"We have a large Standard Poodle/Golden Retriver mix, she weighs 65 lbs. and is bored easily. This toy keeps her intrigued, she will spend an hour trying to pry the treats out of this ball. It is constructed of heavy plastic, so there is no worry that she will destroy it. We plug all the holes with a variety of biscuits of different sizes, and fill the middle with other treats or peanut butter. She will chew, roll, drop and paw at this toy in efforts to get the treats. It is very entertaing for our dog. Also dishwasher safe, it doesn't get any better than that!"