Package Include 3 x Whistles Features - Material: Brass Whistle Pendants - Can suspend in clothes, backpack chest belt! Professional outdoor lifeguard whistle Brass Emergency Whistles. - For referee, teachers, training, , survival, emergency, herding, training bird or dog, etc Mini Brass Whistle. - Made of premium and brass material, it is very safe, and permanent High Frequency Whistle. - Best gift for your teachers, referee, teachers or your friends who are a big fan of outdoors activities outdoor Whistles. - The safe and material can also avoid the damage to the mouth and teeth Practical Warning Whistles.Goods DescriptionBrass Security Whistles Professional outdoor lifeguard whistle, can also be buckled in the backpack to buckle any ribbon, is the choice of outdoor sports equipment.Referee Survival Whistles Little things do big things when the chips are down.Emergency Whistle After polishing, through advanced pickling process, it can effectively the sentinel body, not easy to scratch, and anti-oxidation