No jamming, no loosening. Compared to regular kits, our chimney sweep kit has a chrome knob locking system to ensure it won't come loose in any direction of rotation (clockwise or counterclockwise). Chimney sweeping kit can be assembled and disassembled by pressing the button, and each of our chrome knob chimney brush rods is 410mm. The bristles of our chimney brush are made from nylon rope, with a special sharp edge. Chimney brush rods are made of nylon, elastic and chemical resistant. The head of the rods is made of stainless steel which resists corrosion and maintains a shiny surface. This flexible sweeping rod sweeps away soot and creosote buildup from the bottom of your home. The chimney brush is suitable for pipes of different shapes and sizes. It can clean other hard to reach areas quickly. It won't be broken or stuck in the drain while cleaning. The sweeping kit picks up dangerous soot and creosote buildup inside the chimney or on the roof to help prevent chimney fires. When the chimney is cleaned, air enters the chimney more easily, which can help the fuel burn more completely and make the room warmer. It can also help you save professional service costs of chimney cleaning.Features:- Fits to metal flues and brick chimneys of various diameters and shapes- Select the corresponding pole length according to the actual situation- Able to clean the chimney from bottom to top- Quick disassembly and assembly structure- Will not scratch the inner surface of the pipe- The working head is made of reinforced nylon, which is wear-resistant and not easy to breakMaterial: NylonChimney Rod Length: 410mmTotal Length: 3.69mBrush Size: 40 x 100mmLong Brush Size: 680mmPackage Included:9 x 410mm Flexible Chimney Rods with Chrome Locking Knob1 x 40 x 100mm flexible chimney brush1 x 680mm long brush1 x metal drill attachment1 x hex key