-SAVING-- The window air conditioner installation kit can isolate the space between the air conditioner unit and the window, keeping cool air indoors in summer and keeping warm during winter, always keeping your room comfortable. UNIVERSAL WINDOW AC INSULATION-- AC side panels for fit most window air conditioner units. The size of the insulation foam can be adjusted according to the clearance around the window air conditioner. PREMIUM FOAM-- The air conditioner covers for window units with high resistance is made of high-quality foam material, soft and non-. The window seal for ac unit has excellent weather resistance and can reduce noise and vibration. EASY TO INSTALLATION-- Just measure the size of the window insulator kit you need, then cut out the insulating foam to install on the side of the air conditioner, super easy to install.