Yongshida Aluminum Whistle with Key Ring and Carabiner Color Black Pack of 8 Great for the party use to make a more happy atomosphere This quality emergency safety whistle is great for any situation and it lets out quit a blast Great for boating, camping, hiking personal safety and geocaching Great for the party use to make a more happy atomosphere Carabiner included, so it clips on to belt loops, zippers, purses and backpacks and easy for carrying