Premium Material: Made of high grade aluminium alloy, durable, smooth, and rust-proof.
High Pitch: A built-in half closed silica gel makes the whistle easy to blow a loud, up to 150 decibels.
Easy to Carry: 7 keychain carabiner available to hang the survival whistles, convenient for carrying and prevent from losing.
Wide Application: These whistles are designed for camping, hiking, hunting, boating, and can be a gift for little children.
Package Includes: 7 emergency whistles with 7 keychain carabiners. Quality guarantee and 5-star customer service. If any questions, please feel free to contact us and we will reply ASAP.