Emergency Solar Blanket Thermal Survival Safety Insulating Mylar Heat 83" X 51" Perfect for and should be required for every backpack, hunting pack and glove box. These take up almost no room and weigh less than 2 ounces. If you go backpacking, hiking or hunting, this should be in your pack. If you are building your own bugout bag, this should be in your pack. If you drive anywhere in the winter, this should be in your vehicle. DUE TO SHIPPING COST, SHIPPED IN PACKS OF 4 Material: PETSize: 84" Inches X 52" inches Weight: 1.5 ouncesThickness: 12mm Features:1. The surface of the insulation blanket can reflect back the light source, thus improving visibility from a distance aiding rescuers. 2.When cold, you can wrap the blanket around the body to absorb the temperature, keeping 80% of the body temperature. 3.The insulation blanket is strong, light, soft and flexible. It can be used as a stretche Applicable occasion:1. After the accident, the body can be covered by the first aid blanket to prevent a sharp drop in body temperature;2. If the vehicle breaks down in the cold zone or at night, the first aid blanket can be used to keep the body warm.3. The first aid blanket can be used as reflective film to signal to the rescuers;4.On rainy days, first aid blankets can be used as poncho; It can be used as a canopy;5. During the summer sun, the car will be parked under direct fire, and the front windshield of the car will be covered by the first aid blanket, which will reduce the heat absorption in the car.6. Keep a first aid blanket in your sleeping bag. It is very good to keep warm. 7. Small Package easily store in Car Trunk. Package Includes: 1-8 emergency blankets.. you choose amount above..