The warmer bag is made of ultra-strong rubber film composite fiber. The heating medium is used to heat up the heating element and reserve the energy. The product quality is reliable. The warmer bag cover is made of cotton flannel with soft and comfortable hand feeling. The computerized embroidery pattern features exquisite workmanship and bright colors with three-dimensional effect。（the operation instruction are also applicable to those warmer bag products without cover.
1） Always keep the indicator front upward in charging. After charging is completed. First cut off the power and then unplug the warmer bag.
2） Never use sharp pierce the warmer bag and never use force to knock the warmer bag. It must stop use further if the warmer bag is damaged.
3） Always keep the warmer bag surface dry. It could use soft cloth to clean the dirt if necessary. Never dip the warmer bag into water for cleaning. Strong solvent is prohibited and otherwise the warmer bag will be damaged.
4） Children are allowed to use the warmer bag only under the monitor and control of adult.
5） Never use the warmer bag while it is being charged.
6） Cut off the power immediately if the indicator is not off after it run for 15 minutes.
7） Before ex works, the heating liquid has been filled into the warmer bag already. The replacement of heating liquid is not allowed without permission advance.