1. ADJUSTABLE SIZE: Our air conditioner sealing cloth is available in two sizes 300cm and 400cm allowing you to adjust the length according to your needs. It is compatible with all types of sliding windows, both horizontal and vertical, and works with any portable air conditioners or air dryers to maximize efficiency in your home. 2. ENERGY SAVING DESIGN: Made of special TU fabric for thermal insulation and treated with an innovative heat insulation process, this window seal effectively blocks the escape of cold air while reflecting sunlight and heat to the outside, helping to cool down the room temperature faster and reduce energy costs. 3. COMPLETE WINDOW SEAL: The high quality oxford fabric combined with extended fixed sticker creates a dense, gap installation around your window frame. This comprehensive seal prevents cool air loss and keeps insects out, maintaining comfort throughout your room. 4. PRECISE CONSTRUCTION: Features carefully designed cutting and milling areas that allow for easy adjustment without distortion. The texture treatment near the outlet prevents the tape from shifting after inserting the air hose, eliminating potential gaps for consistent performance.