Improves dryer performanceCan be used with electric drill. With the help of increased rotational force, the bristles can remove even the most stubborn deposits in the flue or chimney. Scratch Poof and DurableThe brush head is made of nylon, which does not scratch the inner surface of the chimney flue. In addition, it is resistant to high temperatures, aging and corrosion, which increases sweeping efficiency. Money saving and easy to use: the dryer duct cleaning kit can help you save exceptional cost for professional cleaning services. Easy to place your cordless drill and keep the drill moving forward and out of the pipe to clean. Easy to assemble and disassemble, you can connect multiple rods to extend the cover. The rod is flexible and can pass through curved flues perfectly. More flexibleThe chimney brush kit is very flexible, it can perfectly bend the hard-to-bend flues, it can slide over all bends and curves and withstand a 90 degree rotation perfectly. The button lock system on the rod connection can prevent the rod from loosening and make cleaning work easier. More efficientElectric sweeping removes more deposits than traditional sweeping and is much more respectful of all stainless steel pipes and liners. Provide a clean and tidy chimney. SaferWith the help of greater rotational force, it can remove oily fumes and even stubborn build-up inside the chimney flue. smoke or chimney, prevent chimney fires, protect home safety. Wide applicationOur products are suitable for metal flue and brick chimney. Regardless of the shape of the fireplace, it can work effectively indoors. Package includes: 9 x Nylon Rods 1 x Brush head