Safety Whistle Whistles with Lanyard Aluminum Keychain Whistle Safety Hiking Whistle Double-Tube Survival Whistles Loud…

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Package contents: there are 3 pieces of the double-tube whistles and 7 pieces of the aluminum emergency whistles with different colors, abundant quantity can meet your daily use and various needs, you can can use one of them and store the other in your bag as a backpack
Hard-wearing material: the emergency whistles with keychains are made of aluminum alloy, sturdy and solid, not easy to break, deform or bend, can retain its color and shape after long time use; Their surfaces are shiny and smooth to touch, friendly to your skin, which will give you a comfortable experience
Resonant voice: the flat and tubular shape design of double pipes makes these survival whistles easy to blow, and the highest sound can reach about 120 decibels when they are in use, which is loud enough for others to hear at a long distance, so they are suitable as rescue signal whistles to deal with emergencies
Easy to carry: each loud camping whistle is light in weight and equipped with a key ring, which is convenient for you to carry around; You can put it in your pocket, handbag and backpack, or hang it on a belt, and you can also put it in your car, at your home and on your desk, which is convenient for you to use at will
Suitable people: these aluminum keychain whistles are simple and beautiful in design, small and exquisite in appearance, and suitable for both men and women, old and young; They are not only suitable for trainers to train others, suitable for sports referees to warn, but also help traffic police to direct traffic, and the old and children can also carry them for emergency help