Material using 210T polyester waterproof fabric, with zipper, very good adhesion, leaving no traces when torn off. Wide range of application suitable for portable mobile air conditioners, dryers, exhaust dryers and dehumidifiers. It is suitable for commonly used inclined window types, whether it is left-opening or right-opening, under-hung window or skylights. Easy to install no need for drilling or additional tools. Simply attach the hook tape to the inside of the window frame and the window itself. Attach the window sealing strip to the hook tape. Then, open the zipper on the window seal and extend the air conditioner hose out of the window. Close the zipper around the hose tightly. The mobile air-conditioning window sealing strip prevents the backflow of heat insulation, effectively reducing power consumption and saving electricity bills. More energy saving, enjoy a cool summer. Removable The window can be opened or closed at any time without disassembling the window sealing strip. Once the weather gets cold, you can also remove it and save it for the next reinstallation.