MEZOOM 4 Pcs Emergency Survival Whistles Metal Double Tubes Reused Referee Coaches Whistle with Lanyard and Key Ring for Camping Hiking Hunting Pet Training;

Specification:
Material: Metal
Lanyard: Nylon
Color: gold and silver.
Package included: 4 pcs whistles and 4 pcs lanyard
Features:
Double Tubes provide high-decibel sound,enough to be heard from very far away in an emergency.
Lanyards available to hang the whistle,convenient for carrying and prevent from losing.
This super loud emergency whistle was also great way to scare off a predator on a trail.
Not only suitable for emergency situation in sporting events,but can be a gift for little children.