Features: Efficiently isolate external air with this portable air conditioner seal, enhancing cooling/heating while maintaining stable indoor temperatures. double opening window seal cover features waterproof fabric for tear resistant durability and breathable, suitable for various window frames. Ideal for renters, homeowners, or anyone using portable units requiring quick insulation solution without permanent installations. Perfect for apartments, offices, or dorm rooms to seal gaps around window mounted air conditioners and prevent energy loss year round. Includes user friendly installation tool, ensuring a snug fit that withstands weather changes and repeated use. Specifications: Component:Waterproof Size:300cm/400cm/500cm Package Includes: 1Pc Soft Sealing Cloth note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.