1.Enough Quantity & Convenient Use: You will receive 100 metal referee whistles in total. With a generous quantity, this whistle set ensures you're well-equipped for the long run. Each whistle comes with a convenient 13.8-inch long lanyard, making it easy to wear around your neck 2.Make a Crisp & Clear Sound: With butterfly mouthpiece and ball pea, our whistle enables stable airflow, producing a clear, penetrating sound that effortlessly cuts through crowd noise and environmental distractions. Whether you're in a stadium or the great outdoors, you'll be heard loud and clear 3.Polished Surface for Safety & Comfort: Our whistles are meticulously polished for both and comfort. The smooth finish ensures a pleasant mouthfeel, preventing any discomfort or scratches while you use them. The smooth surface also makes sure you have a secure and comfortable grip whenever you blow the whistle 4.Sturdy & Rustproof Stainless Steel: Made of quality stainless steel, these whistles boast high strength and great durability. They're built to endure wear, withstand impacts, and resist corrosion and rust. They remain steadfast companions through countless sports events and activities Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.