Fiberglass duct rodder features 1.Light weight,durable,resistance to acid,alkali,aging resistant,corrosion resistant.2.High tensile strength and bending properties to make it go through narrow pipes easily.3.Good temperatures adaptability, it will not soften in hot weather nor become brittle in cold weather, its usability will not be affected by temperature.4.Its outer protected layer is made of high density ABS resin, which has good anti-UV capability, the advantage of smooth, wear-resistant and long service life.5.There are meter marks on the rod for the user easily read it.