A high quality round brush head design is the main feature of this Sweeps All chimney cleaning brush. The brush measures twelve inches in diameter and is perfect for round shaped chimney flues. This 12 Inch Diameter Round Sweeps All nylon Wire Brush Head features a TLC type torque lock connector. The heavy duty, nylon bristles are flexible, durable and ideal for faster and more efficient chimney flue cleaning of soot from coal, oil and gas vents and flues. SweepsAll 12-Inch diameter round brush head with nylon bristles. Tough acid resistant bristles are suitable for use in wood, coal, oil or gas flues. Made with a TLC torque lock connector.