Description These are professional whistles for referee and school athletic meetings, suitable for racing, running, horse racing, swimming, etc. High-class material guarantee long service time, enjoy your own tempo and honor. Can be the perfect gift for your friends who are the referees or instructors. Features -Color: Silver -Material: Stainless steel, nylon -Size: About 5.00X2.00X2.00cm/1.97X0.79X0.79inch - Made of premium stainless steel and safe nylon material, the whistle is durable and safe for long-lasting use. - Lightweight and equipped with a lanyard, it is easy to be hung on the neck and convenient to store. - It has a wide range of application, can be used as a referee whistle, sports whistle, training whistle. - With careful polishment, the whistle is smooth with no burr, safe for you to blow. - It also can function as a survival whistle for outdoor camping, hiking, training and so on. Made of premium stainless steel and safe nylon material, the whistle is durable and safe for long-lasting use. Lightweight and equipped with a lanyard, it is easy to be hung on the neck and convenient to store. It has a wide range of application, can be used as a referee whistle, sports whistle, training whistle. With careful polishment, the whistle is smooth with no burr, safe for you to blow. It also can function as a survival whistle for outdoor camping, hiking, training and so on.