The product is micro-smoking mosquito-repellent incense, and it is made up high grade raw material. No harm to human body. Its effect is very powerful. Its kill speed is very quick. It is not easier moisture absorption. It is break resistant, pull-resistant, pleasant fragrance. Please keep out of reach of children. Toxic to mosquito. Avoid drainage to sewers or natural waters. Totally opening the doors and windows, good ventilation. Store in dry, cool, ventilated storage room. Keep away from fire and heat resources. Store temperature should below 30oC.