The brush head is made of nylon material, which has high temperature resistance, anti-aging, no corrosion and high cleaning efficiency. In addition, it will not scratch the inner surface of the fireplace. It is very suitable for cleaning the chimney from top to bottom or through the chimney, cleaning the stove yourself, preventing the fireplace from catching fire. Can be used with electric drill. With the help of greater rotational force, the brushs can remove even a little burn or chimney. Easy to assemble and disassemble, you can connect multiple rods to expand coverage. The rod is very flexible and can pass through those hard edges perfectly. Item Name: Chimney Pipe Cleaning Brushes Set Material: Nylon + Plastic Features: Practical, Durable, Easy to Use Size: 40cm/15.75" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1x Brush Head 1x Long Brush 9 x Rods