Mmei 8 Pcs Marine Survival Rescue Whistle for Boating Camping Hiking Emergency Survival Ice Fishing Rescue (Orange) Made from high impact plastic that is lightweight and non corrodible This whistle emits a high-pitched sound that is significantly louder than a conventional ball whistle Easy to carry The emergency whistle is the favorite to outdoor sports lovers for convenience Stylish and Functional In A Survival Situation 100% brand new and high quality