1.Energy saver: By preventing hot air from entering your room, this air conditioner window seal can reduce power consumption. Enjoy an environmentally friendly solution that blocks backflow, reduces costs while being easy to install. 2. and windproof: Made of reliable polyester material, this air conditioner window seal is durable and can withstand weather conditions. It prevents hot air from entering your room, and ensures that your air conditioner runs efficiently for a long time. 3.Effortless adjustment: With our window seal, you can start your air conditioner easily. NO DRILLING OR TOOLS. Just place the hose, open the gasket, tighten the hose, install the gasket in the window frame and enjoy the cool breeze without any hassle. 4.Temperature control made easy: Keep your room cool in summer and warm in winter without removing the window seal. Simply open or close the window as needed. Install it again easily next summer.