I suffered for years now under constant "mosquito attacks", tried esmit home remedies and the like, but nothing helped. I can mosquito net with this now for the primal time in a long time to sleep peacefully to wake up without buzzing or stitches from everlasting. it is very simple and completely effective, however, the installation is a little expensive, took me about 10 minutes. UDN I had to get and in the concrete ceiling drilling, which was a bit dirty made but not due to the product, hence 5 stars me a drill. the delivery was relaitv quickly and condition especially in good, original package in a small pocket or rather praktishcen bag.