【Universal Size】This air conditioner seal kit is available in three sizes: 90x25 cm, 160x25 cm, and 180x25 cm. Suitable for portable air conditioners and dryers, as well as horizontal and vertical sliding windows. Please measure your window dimensions carefully before purchasing. 【Superior Sealing Performance】By using a drawstring instead of a traditional zipper system, the sealing cloth attaches more tightly to the exhaust pipe. This design ensures better insulation and effectively prevents hot air, rain, and insects from entering. 【Reliable Design】This portable air conditioner seal kit is designed to solve common sealing problems with zipper seals, such as poor sealing, accidental displacement, or opening. The kit uses durable materials, double stitching, and widened Velcro for improved adhesion and water resistance. 【Easy Installation】1. Open the sliding window about 20 cm and attach the tape to the window frame. 2. Attach the sealing cloth along the tape on the window frame. 3. Thread the exhaust hose through the round opening. 4. Pull the drawstring and further secure the hose with the included fasteners. 【Usage Tips】1. Please remove dust from the frame before installation. 2. For best adhesion, it is recommended to wait 24 hours after installation before use.