Description: 【Enhanced Window Vent Sealing】: Our heat insulation air conditioner window panels provide seal for window and panels, effectively preventing hot air from entering and cold air from escaping. This ensures a comfortable room environment while reducing external noise 【Universal Compatibility】: The insulated foam panels are designed for air conditioner window sealing kits; these foam boards can be easily trimmed to fit the dimensions of your AC sealing board and window. They are compatible with most portable AC window sealing kits available on the market 【Quality Material】: The air conditioner insulating panel is made from heavy duty special foam material. These insulation boards offer great thermal resistance, wear resistance, antiaging properties, and durability to ensure a long term reliable seal for your room 【Three Insulation Foam Boards Included】: The package contains 3x 16.5 inch long insulation foam boards that can cover up to 50 inches when combined for maximum coverage of window vent kits. Customize the foam boards according to the size of your portable AC window sealing board 【Easy Installation】: No special tools are required for installation. The package includes components to easily attach the insulation foam boards to your AC window sealing panel, ensuring easy setup process when used with existing window seal panels Specification: Material: Felt Foam Size Chart: 42cmx16cm/16.54inchx6.30inch Package Includes: 3 Insulated Foam Panels 1 Installation Tape Note: Please allow slightly errors due to manual measurement and different monitors.