Sufficient quantity: There are 3 chimney sweep brushes in the package, enough for use and replacement, practical accessories to meet your cleaning needs, saving you time and energy. 3 SIZES AVAILABLE: Furnace pipe brushes are available in 3 diameters, including 30mm/1.18", 50mm/1.97", 80mm/3.15", suitable for pipes of similar diameter or larger , so you can customize them according to your needs to select the actual size requirements Use with confidence: the heating boiler brush is made of high quality steel wire, strong and reliable and not easy to rust, rust. break or corrode, which can improve cleaning efficiency and serve you for a long time. As a necessary assistant: the chimney cleaning brush can help you effectively remove coal, soot, ash and other dirt. on the inner surface of the chimney, improve working performance and reduce the risk of overheating and fire. Suitable for various occasions: metal chimney brushes can be widely used for cleaning various furnace pipes, chimneys, etc. flues, kitchen hoods, heating boilers, etc. Note: The data is all measured manually, please allow 1-3cm error due to differences in light and display, there may be color differences, please refer to the actual item received.