The safety survival whistle can be used to signal for help or attract attention in outdoor situations. Suitable for outdoors, fishing, camping, hiking, hunting, kayaking, boating, swimming, surfing, sailing, water sports, referee, sports training, sporting events, etc.SpecificationMaterial: Aluminum AlloyDiameter: 9mm / 0.35 inchOuter Diameter: 2.4cm / 0.9 inchOverall Length: 4.6cm / 1.8 inchPacking List: 5 x Emergency WhistlesAdvantageFeature with a big and bright loud sound, the transmission distance is far, can be heard from a long distance, when outdoor traveling, you can confirm the direction, avoid getting lost, and find your partners, and more.It is made of aluminum alloy material, and fine workmanship, waterproof and rust-resistant, sturdy and durable, and not easy to break.

The safety survival whistle can be used to signal for help or attract attention in outdoor situations. Suitable for outdoor sports, fishing, camping, hiking, hunting, kayaking, boating, swimming, surfing, sailing, water sports, etc.SpecificationColor: PurpleMaterial: Aluminum AlloyOuter Diameter: 0.9cm / 0.35 inchOverall Length: 4.6cm / 1.8 inchPacking List: 12 x Emergency WhistlesAdvantage1. Made of aluminum alloy material, waterproof and rust-resistant, is strong and durable.2. Compact and lightweight. Easily fits onto a keychain or backpack, making it easy to carry.3. The surface is anodized for color formation, which is not easy to fade, exquisite, and beautiful.4. No moving parts, water-resistance, that can use at all-environment all weather.