• aluminum alloy
• LOUD SOUND WHISTLE-- You can use it with keychain, it is easy and convenient to take it anywhere you want.
• OUTDOOR EMERGENCY WHISTLE-- The little whistle is really deafening loud and can still be heard from a distance.
• SURVIVAL WHISTLES WITH COMPASS-- Whistle Keychian, The whistle loud crisp and higher tones, good volume, blow vigorously.
• FISHING WHISTLE-- Made of high grade material, this whistle is sturdy and . to deform and .
• EMERGENCY SURVIVAL WHISTLE-- Also, can be a good choice for your friends who like outdoor activity, they will like it.