Flat Aluminum Alloy Dual Frequency Survival Whistle Double Tube Outdoor Survival Rescue Whistle Equipment EDC Tool

Material: Aluminum alloy material, plastic core Weight: about 10g

Peak Volume: Approximately 120dB Surface Treatment: Oxidation + Sandblasting Specifications: Length 55mm * Width 15mm * Thickness 8mm (Measured with Non-Professional Tools, Subject to Actual Product)

[Features]

1.Lightweight and equipped with a keychain for easy portability;

2, Larger caliber, louder whistle sound, an essential outdoor survival item;