* , high quality *Material: PP, PA (rods), nylon, iron *Rod color: white or yellow (randomly shipped) *Pole length (1 piece): 400mm *Direct brush head sizes: 100mm, 150mm, 200mm *Extendable length: 6-piece rod set: 2.3m / 7.6ft 9-piece rod set: 3.5m / 11.5ft 15-piece rod set: 5.8m / 19ft 18-piece rod set: 7m / 23ft *Safety: Regular cleaning of lint and debris from pipelines helps improve airflow and reduces fire risks associated with dryers. Cleaning chimney deposits helps prevent blockages that could lead to poor ventilation and potential carbon monoxide buildup. *Save money: Clean your ducts anytime, reducing the need for professional services and helping extend the life of your appliances. *Multi-function: Suitable for cleaning fireplace pipes, chimney flues, dryer vents, and other rigid pipe systems. Not recommended for flexible foil ducts, as they may be damaged during use. *Simple to use: Attach the rod set to a cordless electric drill. Rotate clockwise and move the assembly back and forth slowly to clean the pipe effectively. *Pole length selection guide: Available lengths: 400mm, 410mm, 570mm, 600mm Shorter rods offer greater stiffness. Hardness ranking: 400mm PA > 570mm PA > 410mm PP > 600mm PP Quality ranking: 400mm PA = 570mm PA > 410mm PP = 600mm PP Recommended: 400mm PA rod and 570mm PA rod for optimal performance. *Improved resilience vs. standard product: Better resilience: Made from superior materials with enhanced recovery after bending. More durable under high stress and suitable for complex duct runs, such as those with multiple bends (e.g., over 3 elbows). Standard product: Best for simple, straight ducts. May break under intense use. Available separately. *Special notes: Newly manufactured PA rods may feel stiff. When exposed to air, they gradually absorb moisture and become more flexible and elastic over approximately one month. Do not store in sealed containers—allow exposure to ambient air for natural conditioning. Do not soak in water, as this may compromise rust protection on metal components. The actual pole length ranges between 400mm and 415mm. *How to use: 1. Connect the required number of rods. 2. Attach the appropriate brush head to the rod. For drill use, connect the hex adapter. 3. Begin slowly, cleaning 2–3 feet at a time. Pull the brush back toward you to remove debris. Avoid pushing debris vertically outward; horizontal clearing may be effective. 4. Have an assistant operate the drill while you guide the rod into the duct. Move in and out incrementally, advancing further after each pass. After cleaning about 3 feet, retract fully to remove accumulated debris. 5. Wear a mask—dust will be present, and odors such as fabric softener may be released. 6. Always rotate the brush/rod assembly clockwise only. Reversing rotation may cause disconnection inside the duct. WARNING: Never force the assembly through the duct. If resistance occurs, pull back slightly (while maintaining clockwise rotation) and advance slowly. WARNING: Avoid bending the rod connected to the electric drill. If necessary, limit bending angle to no more than 30 degrees and operate at very low speed to prevent damage. WARNING: Remove any unused rods when the total length exceeds the required working length. Excess rods may twist and cause damage during operation.