Magnetic Door Fly Screens are easy to apply to any desired door with the choice of either pins or adhesive backed Velcro, keeping fresh air in and insects and bugs out. With secure enclosed magnets, the pet-friendly bug screen opens and closes with ease. The bug screen is easily installed to a wide range of door frames using either the adhesive backed velcro strips or pins. Perfect for use on exterior front and back doors, internal doors, caravans and campervans and patio & French doors.