Keep flies from infesting your barn or garage with the Victor Poison-Free Super Fly Roll. This trap hangs either vertically or horizontally on the included hanger, placed in the area where you would like to trap flies. The three dimensional pattern is designed to attract more insects, and the glue remains potent for several weeks. The paper lengths can be shortened or lengthened per your needs. The Poison-Free Super Fly Roll helps keep your barn, stable, or garage free of flies all season long.