The air conditioning side insulation panel is designed to cover the damaged panel or as a substitute,These panels are suitable for most window units, 5000-22000 btu. THE Air Conditioner Side Insulating Panels works like a window seal, sealing dust, pollen, insects, heat and airflow. Foam material helps reduce noise and vibration and keep your house comfortable This Air Conditioner Side Insulating Panels is mainly used to isolate the space between the air conditioning unit and the window frame. It blocks cold air indoors in winter and hot air outside in summer, thus reducing the heating and cooling costs This Air Conditioner Side Insulating Panels is easy to install For the convenience of transportation, this product is vacuumed. Please open and place the product after receiving it, and blow it with a hot air blower for 5-10 minutes until it returns to normal before use This Air Conditioner Side Insulating Panels consists of two pieces of 17IN x 11IN foam Colour:Black Material:Foam Package Contents: 2 x Side Insulated Foam Panel 1 x sealing strip Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.