[Keep the hot air out of the room]: This portable air conditioner window seal is installed between the window frame and the window through a hose, effectively pushes the hot air generated by the air conditioner out of the window, keeps the cold air in the room, and keeps your room cooler A very long time. [Enhance Cooling Performance and Save Energy]: Air conditioner window seals are made of durable material, which can effectively block the entry of hot air, let your room cool down quickly in a short time, enhance the cooling performance of the air conditioner, and help reduce energy consumption , reduce carbon dioxide emissions, save your electricity consumption and save your money. [Waterproof Function]: The casement window air conditioner seal is made of waterproof material, which can also be used in rainy days. Create a cool space for you on a hot summer day. [Easy to Install]: No drilling and tools required, everything you need is provided. Simply stick the portable air conditioner window vent kit to the inside of the window frame and to the window, place the air conditioner hose on the outside of the window, zip it up, and secure with the zipper. You can open or close the window at any time without removing the window seal. [WIDE APPLICATION]: 400cm air conditioner crank exterior window kit is suitable for both push-out and pull-in window types, suitable for all portable air conditioners. size: 4M Material: Cloth colour: white+black Package Contents: 1 x Sealing cloth 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.