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About product and suppliers:
        Alibaba.com offers 40 5 in one whistles products. About 25% of these are whistle. 

A wide variety of 5 in one whistles options are available to you, such as metal, polyester. You can also choose from free samples. 

There are 40 5 in one whistles suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of 5 in one whistles respectively. 

 in one whistles products are most popular in North America, Domestic Market, and Western Europe. 

You can ensure product safety by selecting from certified suppliers, including 16 with ISO9001, 7 with BSCI, and 6 with Other certification.