1. Adjustable SizeOur air conditioner seal is available in two sizes, approx. 300 cm and approx. 400 cm, allowing you to adjust the length according to your needs. It fits all types of sliding windows (horizontal or vertical) and is compatible with all portable air conditioners or air dryers. 2. Prevent cooling air from escapingMade with special TU fabric for insulation and treated with a heatinsulating bleaching process, our seal effectively blocks the loss of cold air and simultaneously reflects sunlight and heat outward. This helps to quickly cool the room temperature, save energy, and reduce costs. 3. Complete sealingOur seal ensures a tight and gap installation thanks to its material and the extended solid adhesive. By preventing cold air from escaping and flies from entering, it provides excellent protection. 4. Improved detailsThe air conditioner seal features precise cutting and milling areas, allowing adjustment and fitting without distortion. Additionally, the texture treatment near the outlet prevents the tape from falling off after inserting the air hose, avoiding any potential gaps.