Good knight fast card is a paper format mosquito and fly repellant. It is the revolutionary idea by Godrej Consumer Products Limited.
The best thing about this new product is its cheap price. Its effective but only for a little time. The mosquitoes are energized again after an hour or so. A fast acting insecticide named ‘Transfluthrin’ is used to make these papers, which smells really bad and poisonous to our health.
Fast cards are not recommended.