Features and Benefits: 1.Light weight,durable,resistance to acid and alkali,aging resistant,corrosion resistant. 2.High tensile strength and bending properties,which make it go through narrow pipes easily. 3.Perfect temperature adaptability,the product will not soften in hot weather or become brittle in the cold weather. 4.Cover was coated with long-term UV-resistant polyethylene. 5.There are meter marks on the surface of duct rodder,which can be used for measuring distance. 6.There are several colors for your choice.