【Versatile Uses】This window ventilation kit is widely used and suitable for window vents of portable air conditioners with an outlet diameter of 15 cm. 【High-Quality Material】The dryer window ventilation kit is made of high-quality ABS material. It is practical, lightweight, sturdy, durable, and can be used for a long time. 【Improves Cooling Performance】Window exhaust can improve cooling performance. When the window is sealed, it can effectively cool the room in a shorter time. 【Adjustable Design】The practical window ventilation kit for air conditioners can be extended and adjusted freely in length. The maximum adjustable length is 110 cm/43.3 inches. 【Easy Installation】Simply attach the adhesive strip to the inside of the window frame. Then attach the window seal with tape. Then remove the zipper and pull it tightly. The dryer window ventilation kit is easy to install.