Easy Installation: With an adjustable tension rope and one roll of fastening tape, this window seal is incredibly easy to install. Simply attach it to your window frame and enjoy a cool indoor environment. Waterproof and Rainproof: Made from polyester material, this window seal excellent waterproof and rainproof performance. It will effectively protect your room from rainwater and ensure a dry and comfortable place. and Tear-Resistant: The portable air conditioner window seal is crafted from polyester fabric, making it resistant to tears and wear. It is built to last and will provide long-term insulation for your room. Useful Tool: The portable air conditioner window seal is designed to effectively seal your window and prevent warm air from entering, keeping your room cool and comfortable when having your air-conditioner on in hot summer days. Versatile Application: This window seal is suitable for use in various places, including bedrooms, living rooms, offices, and more. It can be easily adjusted to fit different window sizes, providing a solution for your air conditioning needs.