Descriptions: The emergency blanket is made of lightweight polyethylene, these insulating mylar bags provide compact all-weather emergency protection by bouncing back and retaining 90% of your body heat. Features:1. Designed with a 3-in-1 multi-tool kit, equipped with an emergency blanket, whistle and carabiner.2. Practical to use: You can hang the carabiner on your backpack for easy daily carrying.3. With a 120 decibel whistle, people can easily hear your emergency signal in case of emergency.4. Compact size: All tools are stored in a waterproof drawstring bag. Specification: Name: First Aid KitSleeping Bag Material: PET/Mylar Coated AluminumWhistle Material: Aluminum AlloyCarabiner Material: 7075 Aluminum AlloySleeping Bag Weight: About 90g Survival Blanket Size: About 200*100CM/ 78.74*39.37in/ 6.56*3.28ftWhistle Size: About 65*12mm/ 2.56*0.47in (Length * Diameter)Carabiner Size: About 8CM / 3.15in Used for Camping, Hiking, Mountaineering, Hunting, Trekking, Backpacking, Cycling, boating, car rides, outdoor travel, and desert adventures. Packing List:1*Emergency Blanket1*Whistle1*Carabiner