Features: 1Durable: It has the advantages of high temperature resistance not easy to age safe and non polluting. It is easy to carry light in weight easy to install and disassemble and has a long service life. Once installed it is very sturdy and perfect for home and office use. 2Universal: This window sealing tool is specially designed for portable air conditioners. Suitable for all brands of portable air conditioners. Wide compatibility. 3Adjustable: The air conditioner window assembly can be installed vertically on all sliding windows or horizontally on sliding windows and can be combined according to the size of the window. Adjustable length range is 16.9 to 55in. 4Better Sealing: The window sealing plate is embedded in the window rail and clamped and the sealing effect is good. Effectively isolate the hot air outside the window. 5Keep Cool: Preventing warm air from circulating in your room keeping your room cool all the time no air conditioner leakage and effectively reducing power consumption. Specification: Item Type: Air Conditioner Window KitMaterial: PVCGross Weight: 810g / 28.6ozDiameter: 18.7x7.5cm / 7.4x3.0inLength Adjustment Range: 43-140cm / 16.9-55.1inWidth: 10cm / 3.9inApplicable: Suitable for air conditioning exhaust pipes with a diameter of 18.7x7.5cm Package List: 4 x Baffle4 x Screw4 x Washer4 x Nut