This survival whistle is great for camping, hiking, hunting, fishing, outdoor activities, travel, emergency kits, survival kits, etc. Lightweight and compact?our whistle can easily fit into your pocket, backpack, survival pack, purse, etc. Safety Whistle -Compass High precision thermometer, Tinder magnifier Signalling Mirror - 1 White LED Flashlight . 4.33" L x 1.77" W