Better cooling performance: The air conditioner caulking kit prevents hot air from entering through the window. The air conditioner can achieve better cooling performance with this mobile window air conditioner kit. Your air conditioner will be more effective in cooling your room in the room. No-drill installation: It is easy to install the AC mobile air conditioner window seal kit. There is no need to drill holes on your window. The adhesive fastener and zipper allow you to quickly install the window seal. Simply apply the hook strip and attach the air conditioning window seal to the hook strip. Energy savings: The mobile window air conditioner kit saves energy. The air conditioner will have better cooling performance and cost less energy with this window seal than without it. You can save money by using less energy. Universal application: The window air conditioner kit is suitable for all portable air conditioners and tumble dryers. Four zipper heads allow two tubes to pass through the joint at the same time. The window seal can fit a window whose maximum perimeter is 4M/157inch. Color: White Size: 400cm Delivery quantity: 1 piece