Features: Ensures air flows and thermal comfort with our Round Duct Pipe Connectors, designs to enhances the efficiency of your heating and ventilation systems. Crafted from plastic, these connectors feature four protruding buckles and include four clamps for secure easy installation. For campers owners, truck drivers, and anyone using parking heaters, especially in colder regions where maintaining warmth. For use in garages, workshops, hydroponic planting room, bathrooms, lofts, and any setting requiring efficient air circulation and ventilation. These ducting joiners addition for enthusiasts look to improve their heating and cooling systems, ensuring uniform air distribution and enhances indoor air quality. Specifications: Component: Plastic Type: As Picture Show, Four Type to Choose Size: Dizmeter 6cm/2.36inch, Diameter 7.5cm/2.95inch Package Includes: 2pcs Pipe Connectors note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you will not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.