This, or just freezing kibble into your existing slow feeders. I have a couple of these slow feeders and just freeze a small amount of kibble in them with water and chicken broth and my foster loves them. Usually takes him about 15 minutes to get all the kibble out and he's laser focused until it's finished. They're great for keeping him occupied when I need to work, especially if you buy a few and keep refilling them throughout the day.