Juvale Sports Football Basketball Soccer Coach Referee Pool Lifeguard Silver Costume Whistles -12 Pc Pack - 1.70" x 0.60" x 0.70" Includes 12 standard size traditional steel whistles. Perfect for indoor or outdoor use including coaching , refereeing, and life guard duty. When you want attention this whistle will deliver and you will not be disappointed. Features a bold, crisp sound, very easy to blow, blast carries over long distances. Can make a great party favor or goody bag gift for any celebration. Dimensions: 1.70" x 0.60" x 0.70"