Features:Rods: The nylon brush head is heat-resistant, non-corrosive and anti-aging,Cost-Saving: You can easily connect multiple rods to enlarge the cleaning area. Clean the duct by yourself,no more expensive professional cleaning service.Adjustable length: the head and tail can be connected, and the length can be adjusted according to the length of the pipe.Specifications:Type: chimney brushes and poles.Material: NylonColor: blackApplication: Dryer vent / chimneyCleaning Way: Mild CleaningDiameter: (Approx)100mm/4inch eachBrush Length: (Approx)40mm/1.6 inch eachRods Length: (Approx)410mm/16inch eachHow To Use:Step 1: Connect the rods one by one;Step 2: Attach the bristle with rods;Step 3: Put the brush into the flue;Step 4: Slide the rod into the flue;Step 5: Attached the drill with the rod;Step 6: Start cleaning the chimney.Package includes:A : 9 x rods, 1 x brush head, 1 x wooden handle brush.B : 18 x Rods, 1 x cleaning brush with wooden handle, 2 x Brush headWarm prompt:1.Only the above list is included, other products are not included.The other products in the picture only show how they are used.2. Due to the luminous difference and the screen, the color color can be slightly different from the images.3. Please allow 0.5-2 cm differences due to manual measurement.4.NOT WORKING WITH FLEXIBLE FOIL DUCT.