SUPER LOUD & CRISP SOUND -38 PCS The thickened plastic whistles whistle with lanyard has a flared big mouth design that allows more air to pass through, which allows the sports whistle to create louder and crisp sound of up to 120 decibels that is easily recognizable even in great distance.QUALITY MATERIAL & HIGH PERFORMANCE - Our plastic whistles are made of thickened ABS resin, ultrasonic bonding, environmentally friendly, non-toxic, odorless, resistant to fall and corrosion, The whistle is equipped with peas which ensures a loud and stable sound no matter how hard you blow.CONVENIENT & HANDY - Our coach whistles with lanyards It is equipped with a black whistle rope.You can wear the whistle around your neck, wrap it around your hand, or carry it in your pocket. It is super easy and convenient to take the metal whistles with you wherever you go.WIDELY APPLICABLE - thickened plastic whistles whistles for teachers can be used for a variety of purposes. It is the perfect whistle choice thanks to its durability and excellent performance for referees, coaches, leagues, police, lifeguards, self-defense, pets, sport, training, emergency and more.