Kong Treat Spinners Dynamic Internal Tumbler Increases The Challenge And Mental Stimulation Of This Durable Food Dispenser.A Barrel Of Fun, This Toy Holds Up To 4 Cups Of Kibble And Easily Twists Open For Easy Filling. Its Internal Spinning Channels Slowdown Kibble Dispensing, Making It An Ideal, Slow-Feeding Weight Management Tool. It’S Exterior Construction Is Designed Forlong-Lasting Sessions Of Quiet Play.