Product name:whistle Product size about : 5.2x2.2x2cm or 2.04x0.86x0.78 Product color: As shown in the figure Product material:ABS product features: 1. High-frequency, coreless plastic whistle with a loud sound of 124 decibels, perfect for sports teachers, lifeguards, and outdoor emergencies. 2. Ideal for teaching basketball, soccer, volleyball, and other sports, as well as for use in referee and umpire roles during games and matches. 3. Durable and lightweight design makes it suitable for outdoor use, providing a reliable and effective signaling tool in various weather conditions. 4. The whistle's high-pitched sound ensures clear and attention-grabbing communication, making it an essential tool for maintaining safety and order in sports settings. 5. Crafted from high-quality plastic, this whistle is a versatile and long-lasting accessory for sports and emergency situations, offering a reliable and consistent performance. Precautions: 1. As we all know , the different computers display colors differently, the color of the actual item may vary slightly from the following images. 2. If you feel difficult to choose the size, you can feel free to contact mewe will give you some suggestion, but it is for you reference only. Shipment includes: 1 pc whistle