★[Excellent Quality] Made of excellent plastic material, it is very durable and won't scratch or damage the window. ★[Universal] Window Adaptor works with every portable mobile air-conditioning unit, airlock/hot air stop and also compatible with most Windows ★[Quick Easy Installation] Helps to install/disassemble tyres, especially in low sidewalls and flat runs. ★[Application] Suitable for 15CM diameter exhaust pipe, easy to install at home or other indoor/outdoor car. ★[Advantages] A good air conditioner hose seal could helps to reduce energy consumption and also a well-constructed exhaust ventilation system could save your electric bills under efficient cooling system.