Insects invading your corner of the world? Whatever insect you're fighting Black Flag products are dedicated to providing the tools you need to regain control. With formulas that act fast and never back down Black Flag insect controls have been arming homeowners in the battle against invading bugs for more years than any other brand.Black Flag Window Fly Traps are a simple way to control flies mosquitoes gnats moths and other flying pests without the use of insecticides. The discreet transparent design sticks on windows and glass doors. Just peel and stick. Use anywhere flying insects are a problem including living areas garages basements porches and patios and gardens near garbage containers and inside kennels barns and stables.The traps are so effective because theyre placed where flies in your home spend most of their time which is at the window trying to get out. Once flying pests land they never leave. For best results clean windows screens or sliding doors before adhering Black Flag Window Fly Traps so those surfaces are free from dust and grease. Glue works for months or replace trap when full. One package contains 4 traps.