Weight: 10g/0.35oz each
Sound: up to 150 decibels
Material: lightweight aluminium alloy
Color: red, green, black, silver, purple, orange, blue
Package Included: 7 Emergency Whistles with 7 Keychain Carabiners
Emergency whistle with carabiners, easy to carry,
Easy to make clear loud sound with half closed silica gel and smooth surface,
100% High-quality & food-grade aluminium alloy, safe, durable and sturdy to use.