1. Adjustable SizeOur air conditioner seal comes in two sizes, approximately 300 cm and 400 cm, which can be adjusted according to needs. It fits all types of sliding windows (horizontal or vertical) and is compatible with all portable air conditioners or air dryers. 2. Prevent Cool Air from EscapingMade with special TU fabric for insulation and treated with a heatinsulating bleaching process, our seal effectively blocks cold air loss while reflecting sunlight and heat outward. This helps quickly cool room temperature, saving energy and reducing costs. 3. Complete SealingThanks to its material and extended sturdy adhesive, our seal ensures a tight, gap installation. By preventing cold air from escaping and keeping flies out, it provides protection. 4. Enhanced DetailsThe air conditioner seal features precise cutting and milling areas, allowing distortion adjustment and fitting. Additionally, the textured treatment near the outlet helps prevent the adhesive tape from falling off after inserting the air hose, avoiding any potential gaps.