The fabric is made of polyester fiber, and the heating wire is installed in the middle, gear: 1-2, length: 145cm, width: 115cm, instructions for use: make the bed clean, the bottom is best with a wooden board or paper skin, the spring bed can not be used, because the electric wire of the electric blanket is a fixed size, once it is concentrated in a position depression, it will be pulled off, resulting in power failure and scrapping, and male and female mating can not be used, more than 1 person complies, according to the design procedure: 1, the plank is paved, or the spring bed is covered with paper, 2, spread a piece of cloth to prevent displacement, 3Spread the electric blanket, regardless of the bottom surface, put the plug towards the power socket, 4, and then lay a cloth to prevent the garbage from staining the electric blanket, 5, plug in and sleep, don't worry, the temperature can be. Exception: 2 sheets are stacked on top of each other if you need high temperatures, so you can sleep comfortably, and the planks have repaired the curved back to ensure that you are full of energy every day.