Purchased one of these to keep Cosmo entertained and busy. I use it when I've gone to work or just for fun when I'm in and to make him work for his food. I've stuffed food in this as well as treats and it always keeps him busy for awhile. He sees it as a positive toy and I enjoy watching him have such enjoyment with something fun! Nice that you are able to stock these, 100% reccomend for anyone looking for something to keep their dog busy.