Whole House Fan Cover Insulated: The inner part is made of premium quality aluminum foil foam insulation material with a good Insulation effect. Ceiling Attic Fan Cover Size: Whole house fan vent cover measures: about 129x95cm. Comes with a self-adhesive strip that can attach more firmly without falling off, easy to mount and remove. Multifunctional Attic Insulation Cover: Attic insulation cover protects your home from temperature and moisture. Completely protects against heat loss in winter and excessive heating in summer. Apply for Any Vent: 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 Wide Applications:Attic insulation cover is suitable for living room, bedroom, study, dining room, bedroom and other places, which can bring a lot of convenience to your life. Wheather in hot and cold weather, it can provide you energy-saving insulation and achieve the best in energy effectiveness. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Photo Color Material:Aluminum film insulation board Size:B:About 129x95cm Package Contents: 1 x fan cover 1 roll x Nylon buckle 5m Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.