Aluminum alloy whistle with a keychain is sturdy and durable, not easy to break, deform or bend, and can still maintain its color and shape after long-term use. Its flat shape and the double tubes make these survival whistles easy to blow. The highest pitch is loud enough for others to hear from a distance, making them suitable as rescue whistles in emergency situations. You can attach it to your backpack, wear it, or integrate it with your keys for immediate accessibility in any situation. 2 11/64" L x 19/32" W
Material: Aluminum Alloy
Imprint Area (LxW): 1 31/32" L x 25/64" W
Prod Dimention: 2 11/64" L x 19/32" W
Packing: 1 pc/opp bag
Units/Ctn: 3000 pcs/CTN
Carton Dimention: 19 11/16" L x 13 25/64" W x 9 27/32" H
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