BETTER ENERGY EFFICIENCY - Compared with the old zipper design, this portable AC window seal kit has a full tube fitting and sealing design that tightly blocks hot air and rain. They create an excellent sealing effect that improves the energy efficiency of your cooling system. PERFECT FOR HOME & OUTDOOR USE - Stick the window and enjoy the AC window seal which is perfect for home and outdoor use. Keeps warm air out and cold air in, bringing you more comfort. Simply remove the tube when not in use and close the window as usual with the simple design. No need to move your air conditioner. DURABLE QUALITY - This window seal kit is made of high-quality bleached fabric that is waterproof and sturdy. It also has a double suture and strong grip that provide a stable attachment for your portable air conditioner pipes. QUICK AND SIMPLE INSTALLATION - This window seal kit allows you to set up your portable air conditioner in no time. Simply open the sliding window, place the tape on the window frame, insert the exhaust pipe through the circular hole, and secure the cable latch. No drilling or tools are required. Place the cloth in the kit along the tape to seal the window and keep fresh air in. VERSATILE USES This window seal kit works with portable mobile air conditioner, dehumidifier, exhaust dryer and drum dryer. Can seal any shape and size of window. Due to this, the warm air remains outside, and the room remains cool. It is easy to install and remove.