• Stops the entry of hot air by blocking the hose between the window frame and the sash. • Keeps bugs, mosquitoes, and rain away. • Increases cooling performance by sealing around the open door. • Reduces energy consumption and CO2 emissions, helping to save on electric bills. • Adjustable to size, suitable for portable air conditioners or dryers. • Fits sliding doors of 35x232 cm. • Easy to install without the need to drill holes, includes everything necessary.