Fiberglass core provides non-conductive and non-arcing capabilities for use near live circuits. This fiberglass is an economy fiberglass which is lighter, and less costly than our S-Class® fiberglass. Recommended for light duty work, or for those that don't do a high volume of fishing, this fish tape is a step up from traditional nylon fish tapes. More column strength for pushing ability, and less coil memory than nylon. Available in 60 ft. and 120 ft. lengths. Replacement tapes available.