More Stable: the attic vent cover comes with a self adhesive magnet strip, which can stick more firmly without falling off easily, before trying magnets make sure the metal frame is steel, not aluminum Apply for: whole house fan cover is easy to install on any vent in the home without the use of any tools; It can be fastened to the fan vent from outside the home without entering the attic Package Contents and Size Detail: you will get a shutter cover measuring 122 x 92 cm/ 48 x 36 inch and a roll of flexible magnetic tape with the size of 2.5 x 500 x 1.5 cm/ 1 x 197 x 0.6 inch; They are large and long enough for your daily needs Easy to Storage: the package comes with a storage bag, allowing you to store the attic fan insulation cover and magnetic tape with adhesive easily and quickly; You can store them in drawers, cabinets and other places Wide Applications: insulated swamp cooler cover is suitable for living room, bedroom, study, dining room, bedroom and other places, which can bring a lot of convenience to your life