Adecco LLC Plastic Coach Whistles with Lanyard, Pack of 6 Material and Size: Made of durable plastic to ensure whistle is as lightweight as possible. Plastic Whistle size: 4*2*2cm. Lanyard length: approx 42cm. Package includes 6pcs red whistle with lanyard. Loudest Coach Whistle: The sound is bold and crisp that carries to long distances, you can quickly catch the crowed attention anytime you want. Hands Free Secure Lanyard: Each sports referee whistle comes with a strong nylon lanyard, you can hang easily around your neck comfortably, or on a wall mount, help you free you hand. Various Occasion: These red whistles are suitable for referees, coaches, training, teachers, survival, emergency, school, gym, etc. QUALITY GUARANTEED: 30-day Products Exchange and Money Back Guarantee. If you have any other questions, please feel free to contact us!