Description of the window sealing kit designed specifically for portable AC.Features: Description of this window sealing kit designed for portable ACIt can prevent cold air from leaking out quickly. Made of high-quality materials used for a long time. It has a simple design but is very practical to use and can give you a good experience. It can also be a great gift for your friends, they will love it. Substance: PVC-It is used to move the air conditioning ventilation heat pipe, the baffle is installed on the window, and the heating pipe can be extended from the window through the hole, while preventing the cold air from being exhausted.- Adjustable and widely used for sliding glass Windows or doors. All boards may not be available upon request. Insulation, sunscreen, keep hot air away from the house, keep the house cool. Screw fixed design, you only need to use the nut lock, you will get a strong AC window seal. It doesn't slide easily. Exquisite workmanship, reasonable structure, professional and practical, can bring you convenience.Package List4 x vent plate 3 X screws