This product is a Balt made of dinotefuran,the dinotefuran is a third generation, insecticide, which acts on the nerve transmission system of insects and has to the effects of contact killing and stomach poisoning. it is designed for indoor use in a place such as hotels, office buildings, hospitals, school,food factories, aquaculture plants and restaurantsSanitary and environment-friendly: no chemical residues, non-polluting, no irritant odor Directions for use 1. Open the small plastic bag and pour the powder bait where cockroaches are frequently observed or tend to hide. It can be poured in dark places, around inlets of sewer, by cupboards or refrigerators, under sinks, near kitchen ranges and in drawers, wardrobes or hallways 2. Each bag is better used for 3 to 5 spots. In order to ensure the effectiveness, once opened, it should be used up at one time. 3. It is suggested to replace the powder every seven days. Cockroaches will be eradicated after you use the powder for two to four times in succession 4. The more the powder cockroach killing bait is placed, the better the effect will be. If a place is heavily-infested by cockroaches, please apply the powder to the whole area.