[AVAILABLE SIZE]The air conditioner weatherstripping kit strip is suitable for windows with a circumference of 500cm. Measure the 4 sides of the window frame and add them, A+B+C+D should be less than or equal to 500cm. You don't need to use any adapters or other tools, just attach the adhesive tape to each window frame and fix the mobile air conditioner weatherstripping. Quick installation in 10 minutes, no drilling required to keep walls beautiful. [EFFECTIVE BARRIER AGAINST HOT AIR] The double-zip design, which perfectly connects the window to the frame, ensures a good seal and therefore a good long-term maintenance of the cooling temperature of the room, while helping to reduce energy loss and save on electricity bills. In addition, the windows can be opened and closed as you wish without affecting their function. [STRONG DOUBLE ZIP*2] Supports single duct and double duct air conditioners, regardless of the model. Double fixing design, the exhaust duct is fixed and then secured