Flying insects are attracted to windows by light and heat. Catch them where they spend most of their time the window. The sticky, clear trap design and special glue lures flying insects in and catches them when they touch the window. Perfect for any room, the Window Fly Trap is easy-to-use, poison-free, and odorless. Highlights: Attracts and traps flying insects Uses Silvalure technology to lure flies in and trap them Fits most windows No baiting Lasts for months Contains 4 traps Poison-free and odorless For homes, hospitals, restaurants, boats, RVs, and more.