Made of excellent ABS plastic and very durable Suitable for air conditioning exhaust pipes with a diameter of 15 cm, and a suitable size will have a better sealing effect Both ends are designed with a buckle and a button, making installation simple and convenient Helps prevent debris from entering the exhaust duct and improves air conditioning efficiency Universal for all windows or balcony doors Description: 100% brand new and high quality Features: Material: PVC Color: Gray Size (approx.): 15cm x 21.5cm x 7.5cm/5.91" x 8.46" x 2.95" Suitable for 15CM diameter exhaust duct Features: [Excellent Quality] Made of excellent plastic material, it is very durable and will not scratch or damage the window. [Universal] The window adapter works with every portable mobile air conditioning unit, airlock/hot air shutoff and also compatible with most windows; [Quick and Easy Installation] Helps install/demount tires, especially on low sidewalls and flat tracks. [Application] Suitable for 15CM