Material:plastic
1. The whistle has three holes, each with a different sound. The sound is pleasing to the ear.
2. With a chain, portable, to prevent loss.
3. When you are traveling outdoors, you can help you to confirm your position, avoid the rabbit, get lost, and find a companion.
4. Children and women can carry it with them. In case of danger, they should be blown in time to attract nearby people to help.
5. Suffering from disasters, bragging can attract the attention of rescuers and get timely assistance.
Specification:
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