The Altland 4 Pack of Emergency Blankets is a set of heat reflective blankets designed for outdoor use in emergency situations. Made from Mylar material, these silver blankets are waterproof and offer a solid pattern for easy identification. With dimensions of 82 inches in length and 52 inches in width, these emergency blankets are lightweight at 9 ounces, making them ideal for adult use in camping, hiking, and other outdoor activities. The set includes 4 blankets, providing a reliable and versatile option for survival situations.