Chimney Cleaning Brush Set Contents: Chimney brush head x 1, hex bar x 1, 9 extension rods, rod length 24.0 inches (61 cm), brush diameter x 3.9 inches (10 cm), brush material: nylon, pole material: nylon. Product Features: The chimney brush is flexible and long-lasting. Suitable for cleaning oil stains and ashes in the chimney. Made of flexible nylon that wont scratch the inner surface of the chimney. The extension rod has excellent flexibility and is suitable for curved chimney. The hex rod can be attached to an electric drill for efficient cleaning. The length of the extension rod can be extended by 23.6 inches (60 cm), and the length can be adjusted according to your preference, so you can clean it efficiently from the bottom of the chimney pipe. (Product Specifications) 9 extension rods, 24.0 inches (61 cm), brush head diameter: 3.9 inches (10 cm), hex rod, maximum length can be extended to 19.3 ft (5.4 m). Applications: This chimney cleaning brush is intended for cleaning pipes such as chimney, and can be used in a wide range of applications such as cleaning chimneys on wood stoves, cleaning pipes of ventilation fans, etc.