Description The whistle is made of good quality materials, and with hanging circle. This whistle has crisp sound, which is suitable for referees, coaches, training, instructors, sports, teachers, lifeguards, , survival, emergency, herding, training bird or dog, etc. Features -Color: Silver -Material: Metal -Size: 4.50X2.00X1.70cm/ 1.77X0.79X0.67inch -Whistle with hanging circle, easy to carry, or only hitch it on your key chain. -Sturdy metal design makes sure your whistle won't break while using for all your needs. -Premium metal whistles that come with a hanging circle for hands-free use. -Perfect whistles for instructors, referees, athletes, lifeguards, football, basketball, soccer, swimming, outdoor safety, , lifeguard, survival or emergency situation. -And as well as for lifeguards, animals trainers, and traffic policeman . Whistle with hanging circle, easy to carry, or only hitch it on your key chain. Sturdy metal design makes sure your whistle won't break while using for all your needs. Premium metal whistles that come with a hanging circle for hands-free use. Perfect whistles for instructors, referees, athletes, lifeguards, football, basketball, soccer, swimming, outdoor safety, , lifeguard, survival or emergency situation. And as well as for lifeguards, animals trainers, and traffic policeman .