[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. [Waterproof Function]: The window air conditioner seal is made of waterproof nylon material, which can also be used in . Create a cool space on a hot summer day. [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 exhausts the hot air generated by the air conditioner out of the window, keeps the cold air inside, and keeps the room cool for a long time. [Enhance Cooling Performance and Save ]: Air conditioner window seals are made of nylon 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 consumption , reduce carbon dioxide emissions, save your electricity consumption and save your money. [WIDE APPLICATION]: The 400cm air conditioner crank exterior window kit is suitable for both push-out and pull-in window types. Compatible with all .