Extra Loud Sports Whistle Ball-Less Design Loud Crisp Sound Whistle Professional Sport Whistle Multi-Application with Rope Mouthguard for Coaches Referees Lifeguards Feature: 1. Ball-Less Whistle Design: Our dolphin plastic whistle uses a ball-less design, allowing for a louder volume and stronger penetration power that easily cuts through crowd noise or natural environments. The whistle is for sports referees, coaches, outdoor enthusiasts, and traffic controllers. 2. Clear and Loud Sound: The extra loud sports whistles produces a clear and loud sound that can easily be heard across the field. It is ideal for controlling the rhythm of games, training sessions, and emergency situations. 3. and Hygienic Material: Our loud crisp sound whistles is made of ABS engineering hard plastic, which is , long-lasting, and easy to clean with water without fading. The material of referee whistle used is also hygienic, ensuring that it is safe to use and free from harmful chemicals. 4. Wide Range of Applications: Our whistle is functional and versatile, making it suitable for various activities, competitions, and training sessions. It is commonly used in sports events, outdoor activities, traffic control, and training exercises. 5. Safe and Eco-friendly: Our survival whistle uses food-grade silicone material that is non-toxic, odorless, and environmentally friendly. It is safe to use and won/x27;t harm your teeth or gums. The whistle is suitable for all ages, making it an excellent choice for sports coaches, teachers, and parents. Specification: Origin: Mainland China Model Number: Whistle Product material: ABS plastic Product color: black, light blue, dark blue, gray (optional) Product size: 5cm/1.97inx 2cm/0.79inx 0.8cm/0.31in Note: Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2cm measuring deviation due to manual measurement. 1 X Whistle 1 X Lanyard 2 X Mouthguard 1 X Storage Box