Your cat will love the INTERACTIVE COOCKOO cat toy TUMBLER. The tumbler rotates and vibrates, causing the feathers and Coockoo eyes to bounce. The Tumbler whistles. The upper part of the Tumbler has small openings. By removing the upper part, the Tumbler can be filled with snacks and treats, which fall out through the small openings when playing. The timer (15 minutes) is activated automatically. If the toy is not used, it will automatically stop rotating. If your cat touches the Tumbler again, the Tumbler will immediately start again.