Improve Cooling Efficiency: This flat nozzle interface can tightly connect the exhaust pipe to the air conditioner, which helps to quickly exhaust air, helps to cool, improves cooling efficiency, and makes you feel more comfortable. High-quality Material: Our air conditioner interface is made of high-quality material, safe, environmentally friendly, durable, odorless, and can be used for a long time. Reduce Hot Air Intake: This interface can connect the exhaust pipe of the air conditioner and cool your room in a shorter time, making you feel comfortable with environmental protection and energy saving, saving you money. Easy to use: No tools, no drilling required. Connects to the exhaust hose and can be easily installed on portable air conditioners. Very simple and lightweight, easy to carry and store. Note: The data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be some color differences, please refer to the actual item received.