EDO 3 Pcs Cute Keychain Folding Pocket Knife, Self Defense Camping Outdoor Survival Folding Knife Mini Key Shaped Knife Gift(Multicolor, Gold, Silver)

Binboll whistle is a must-have for outdoors enthusiasts.
Brand new design, fashionale

Features:
Made of aluminum alloy to provide premium quality
Double-tube design, 120db loud
Only 12g, a real light item
Can be easily fastened to key ring, key chain, belt, backpack and other bags
A great item for sports referee and outdoor activities like hiking, camping

Premium Quality: Aluminum Alloy Material, durable.
Loud Whistle: Double-tube design, loud up to 121db for Emergency Survival,high-frequency.
Loud Whistle: Double-tube design, 121db, high-frequency.
Easy to get help in emergency situation
Versatility: A good item for outdoor hiking, sports referee, emergency.
Premium Quality: Aluminum Alloy Material, durable.
Loud Whistle: Double-tube design, loud up to 121db for Emergency Survival,high-frequency.
Loud Whistle: Double-tube design, 121db, high-frequency.
Easy to get help in emergency situation
Versatility: A good item for outdoor hiking, sports referee, emergency.

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binboll Double-Tube Whistle Aluminum Alloy Survival Whistle with Necklace for Outdoor Needs Sports Referee Emergency(silver-2pack);