Fly catcher attaches directly to window for an easy, quick application. Contains a signature glue on one side and a non-residue double-sided tape on the other, providing maximum protection while capturing insects as they try to escape toward windows. Signature glue catches insects as soon as they make contact with the adhesive. Specially designed to catch flies, fruit flies, gnats, mosquitoes, Asian lady beetles and a variety of other home-invading insects. To dispose, simply remove the adhesive and throw it away.