Keep the kids busy for hours with these whistling tubes. Give the plastic tube a twirl, and this noisemaker never fails to delight. Twirling the tube at different speeds will create a different pitch. Great as a party favor giveaway. Also makes an excellent outdoor family activity. This collection of 12 whistling tubes is perfect for kids ages 3 and up. Made of plastic and available in assorted colors, these 3 inch long tubes are sure to provide hours of fun. Give it a twirl and enjoy the delightful sound it produces. Perfect for party favors, outdoor activities, and more. Get your dozen whistling tubes today!