<b>AGPTEK 300cm Window Seal for Portable Air Conditioner, prevents hot air from coming back into your room. A great solution that could save you heaps on your bills! Enjoy a cooler environment in summer!<p>- How to select a right size of window?</b><br>Calculate the total length of 3 sides of your window frame ( perimeter ≤300cm). Fit window with a maximum total length of 300 CM. <p><b>Steps to Install <br>1.Stick The Adhesive Hook Tape</b><br>Clean the window casement and window frame, then Stick the hook tape on the window casement (Green in picture), and then stick it on the window frame (Blue in picture).<p><b>2 Identify the right sides of the window seal .<p>3.Attach the window seal to the hook tape. </b><br>You can close the window to make sure that the window seal isn't clamped.<p><b>4. Insert the hose: </b><br>Open the zippers on the window seal. Place your air conditioner hose out of the window.Close the zippers tightly around the hose. <p><b>✔Water & UV Proof :</b><br> Made of 190T dacron and PU coating fabric, water and UV proof. premium hook and loop tape.<p><b>✔No Damage to Window:</b><br> The window seal is pasted around your open window to zip around your hose without drilling a hole on window for exhaust hose.<p><b>✔No More Insects: </b><br>Tired of disgusting flies and mosquitos? The window seal also can keep flies, mosquitos and other insects outside!<p><b>Specification：</b><br>Window Seal Length: 300cm/118in<br>Window Seal Material: 190T dacron + PU coating fabric<p><b>Package Contents: </b><br>1 x 300CM Window Seal Cloth <br>1 x Roll of Adhesive Hook Tape<br>1 x User Manual