Package Content: which are easy to combine, practical in your , and you can apply them to different rooms Long Time Companions: this air conditioner window seal is mainly made of polyester material, which is reliable to use, safe and strong, not easy to break, and can effectively be against the wind, which makes them long time companions Adjustable Design: this window vent kit features an adjustable design, allowing you to adjust according to your preference and various needs, and each window sealing cloth measures about 10 inches/ 25 cm wide, and about 34 to 64 inches/ 86 to 162 cm long, suitable for most Practical Sealing Design: the hole of this portable dryer vent kit can be fastened by a drawstring, which can help prevent air from going back inside, blocking the heat and keeping your rooms cool Convenient Usage: you can assemble this portable AC window kit on your own; First you need to open the window for about 7.87 inches/ 20 cm and stick the sealing tape to your window frame, then you can put the exhaust hose out of the hole and tighten the drawstring closure, finally the hose can be fixed, emitting the hot air out