●Set Contents: Set of 4. Size when unfolded: 82.7 x 63.0 inches (210 x 160 cm); Material: Aluminum, polyester ●Emergency measures: Designed to respond to sudden changes in temperature and disasters. It can be used as an ultra-lightweight and simple blanket, preventing wind from passing through in low temperature conditions, and has excellent thermal insulation, so it has excellent cold protection ●Reflective Function: The surface is made of a light material, so it can be used to mark when encountering mountains, and it will notify rescuers as a reflective film that sends signals. Good visibility from the rim, can be used for SOS rescue signals ●Ultra Lightweight and Easy to Carry: Since it is folded into a compact size, you can always keep it in your bag, emergency backpack, or in your car, it is easy to carry and doesnt take up much space ●Wide range of uses: In addition to preventing the cold in emergencies, it is convenient to keep it with you during mountain climbing or watching sports. It can also be used as a countermeasure against heat due to the ability to prevent high temperatures in summer. Of course, it can also be used as a rain protection