Connecting pipe material: Chimney cleaning brush The connecting pipe is made of polymer material and high-hardness alloy, corrosion-resistant, soft and not easy to break. It is suitable for cleaning curved pipes. The interface is smooth and easy to assemble. 6 rods to connect: 6 flexible rods of 410 MM and 100 MM brush head, easy to assemble and disassemble, you can connect multiple rods to meet a wider range of needs. The rods are flexible and pass perfectly through hard chimney arches. Widely used: The adjustable pellet stove cleaning kit is used to clean the smoke hood, pellet stove, VMC duct, gutter, pipe, etc. All hygiene difficulties are solved Can be used with an electric drill: thanks to the high rotation force, the bristles chimney sweeping kit can remove even the most stubborn deposits in the chimney or fireplace. Helps prevent log fires Note: The data are all measured manually, please allow an error of 1-3 cm due to differences in light and display, there may be color differences, please refer to the actual item received.