1. Adjustable Size Our air conditioner seal is available in two sizes, approx. 300 cm and approx. 400 cm, so you can adjust the length according to your needs. It fits all types of sliding for (horizontal or vertical) and is compatible with all portable air conditioners or air dryers. 2. PREVENT COOLING AIR FROM LEAVING Made of special TU fabric for insulation and treated with a heatinsulating bleaching process, our gasket effectively blocks the loss of cold air while reflecting sunlight and heat to the outside. This helps cool down the room temperature quickly, save energy and reduce costs. 3. Full sealingOur seal ensures a tight and gap installation thanks to its material and extended fixed sticker. By avoiding cold air escaping and preventing flies from entering, it provides excellent protection. 4. Improved details: the air conditioning seal has precise cutting and milling areas that allow adjustment and adjustment without distortion. In addition, the texture treatment near the outlet prevents the tape from falling off after inserting the air hose, avoiding any gaps.