Features:-The sealing cloth effectively disperses the warm air in the room, ensuring your air conditioner works faster and more efficiently, creating a "closed environment" that keeps your room cooler for longer.-The sealing cloth prevents dust, rain and insects from entering, keeping the room clean.-Made of durable 210T polyester with PU coating, it is UV resistant, reusable and washable up to 40 degrees Celsius.-Designed to fit all portable air conditioners and tumble dryers, it offers versatility for different types of windows (up to 300cm), including the most commonly used tilt and casement windows, but not for sliding windows.-Installation is a breeze, no complicated tools or drilling required, just follow the included instructions and you'.