Material: The emergency survival blanket is made of PET film material, which has insulation performance, is sturdy and durable, waterproof and windproof, and can retain and store body heat, the silver survival reflective thermal first aid foil blanket helping to prevent hypothermia in emergency situations. Suitable Size: Each emergency survival blanket is individually folded, packaged, and sealed for easy storage and retrieval. The folded size of each emergency survival blanket is 12 x 7cm, and the unfolded size is 210 x 140cm.the silver survival reflective thermal first aid foil blanket can be stored for a long time in drawers, closets, cars, backpacks, and first aid kits. Easy to Carry: Each emergency survival blanket is reusable, and the folded blanket is very lightweight, making it easy to carry or store. the silver survival reflective thermal first aid foil blanket can be easily stored in any first aid kit, bag, backpack, bag, car, or any place you need. Widely Used: the emergency survival blanket can be used as backpack covers, raincoats, emergency reflectors, shadow covers, dust covers, sleeping bag liners, windshields, mats, water collectors, and other applications. Suitable for camping, hiking, jogging, running, mountaineering, skiing, snowboarding, winter sports, emergency situations and accidents, first aid kit scenarios. Packaging Includes: You will receive 20 emergency survival blanket, each individually packaged and in sufficient quantity for use, whether in a car, handbag, backpack, or anywhere else.with silver survival reflective thermal first aid foil blanket In emergency situations, you and your friends, acquaintances, and family are always well protected.