Fits 5.9 inch to 6 inch hoses: Compatible with the back of most portable air conditioner units. Designed to fit down to 5.9 inch diameter exhaust hoses. Works with both clockwise and counterclockwise hoses. Easy to use: No tools required. No drilling needed. Connects directly to the exhaust hose and can be quickly installed on the back of the portable air conditioner. Enhances cooling performance: Secures the exhaust hose tightly to the air conditioning unit, improving efficiency and helping cool the room faster. High quality: Made from durable plastic material. Built to last and provide long-term use. Model: Round Diameter: 15 cm Material: Plastic Color: Gray White Package contents: 1 x Interface Note: Light and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.