Strongly Recommend: *I recommend 395-400-570mm long poles/rods (other links in my shop). *First, 570mm long poles/rods need not be bent during transportation. However, 600mm poles/poles need to be bent during transportation! *Second, the material of 570mm long poles/rods has better quality (PA). The material of the link poles/rods is PE. *Third, PE poles/rods are suitable for cleaning pipes at a very low speed. *Finally, the materials of other poles/rods in my shop are better than those in this link. It is highly recommended that you visit and check! 570mm PA Rods (Better quality) 400mm PA Rods (Better quality) Detail *100% Brand new , High quality,Shiped in 48 hours; *Material: PE, Nylon, Iron * Very suitable for cleaning various pipes, chimneys, etc.; *Cleaning the pipeline by this equipment can save more money; frequent cleaning can effectively prevent the occurrence of fires; * It is easier to clean up the garbage in the pipeline when used with an electric drill; *Multiple connecting rods can be combined, and pipelines of various lengths can be cleaned flexibly; *The length of the pole (1PCS): 600mm; *Direct brush head: 100/150mm. How to use 1. Connect a sufficient number of poles as needed; 2. Install the brush head on the pole, (if you use a power drill, go ahead and install the hex pole); 3. When you start off go slow and clean out 2-3 feet at a time and pull the brush back towards you to bring all the dust junk back to or down to you. Going vertical to push the junk out won"'"t work. However horizontal may work for you. 4. Get someone to do the drill work for you as you guide the rod and brush in and out of the pipe. As you go in pull it back and forth and then go in further. Once you have done about 3 feet pull it all back out to bring the junk back to you. 5. WEAR A MASK !! There will be dust everywhere. It will smell like fabric softener everywhere. WARNING: Never force the brush/rod assembly through the duct! If it should become jammed, pull assembly away from constricted area a few inches (still rotating in a clockwise direction) then slowly push forward. WARNING:Please do not bend the rod connecting the electric drill.