I would like to share my own experience to use this product. When I shifted my house for official purpose new house have lots of cockroaches. Then office staff recomend me to use this product and I thought ok lets try it. I go to the shop and buy it and mark it where they comes and it works I am happy for that. But for 2 -3 days only after that they comes again and again and at last I irritated about this product. How many times you have to do such types of work daily ? I am not going to say bad it its good for some times only after that it wouldn’t work any more. So I didn’t like this products for such activity and I also did not think this is userfriendly. Thank you.