Avesteir Pack of 5 Referee Whistles, Whistle Sports Lessons, Whistle, Metal Extra Loud Signal with Lanyard, for Trainers, School

High quality: The referee whistle is made of high-quality metal, is safe and durable, has a smooth surface without burrs, does not scratch the mouth and is easy to use, does not rust or corrode easily permanently. Metal whistles are not as prone to cracks as plastic whistles Loud sound: the small ball in the whistle can change the tone of the whistle, which makes the sound louder and clearer, which can quickly attract people's attention in a wide and loud place. Also ideal for use in emergencies Convenient to use: the whistle is equipped with a removable carrying strap, you can hang it around your neck or wrap it around your hand as needed, so that the whistle is always available; if you do not need it, you can also remove the lanyard Product specifications: the package contains 5 metal whistles, the pipe size is 45 mm x 20 mm x 20 mm. The whistle is very light and the size is very suitable for children. Application: metal whistle with lanyard. This signal whistle is perfect for referees, trainers, lifeguards, dog trainers and traffic police officers. They are also suitable as outdoor survival equipment