Bonide Products Window Fly Catcher contains a superior signature glue on one side and a non-residue double-sized tape on the other providing maximum protection. Specially designed to catch flies, fruit flies, gnats, mosquitoes, Asian lady beetles and a variety of other home-invading insects. Flycatcher conveniently captures insects as they try to escape toward the window and attaches directly to window for an easy, quick application. Available in a 4 pack. About Bonide: Bonide has been trusted since 1926 as the leader in providing the best possible products and solutions for home, lawn, and garden pest problems. Based out of Oriskany, New York, we continue to grow our reputation as a leader in the lawn and garden care categories by delivering the highest quality products alongside our great customer service. Our goal is to help consumers throughout their entire purchasing process by recognizing signs of trouble, developing the best solutions, and recommending the perfect products.