Quantity: One Roll Specifications: 30 meters in length and 4 mm in wire diameter Fish Sling Clips: Fish sling clips are used to help fish slings be more convenient to use. One side is connected to the wire, and the red wire cap prevents the wire from disconnecting when you pull the wire. The other side is connected to the fish tape, so that the line is firmly connected to the fish tape; For internal and external site electrical connections, outlets, plugs, sockets, lamps, ceiling fans, dimmers, switches, short-term installation electrical boxes, electrical panels, subwoofer boxes, switch boxes, junction boxes, central processing units, switch boxes, outlet boxes, transformers, doorbells, intercoms, surveillance cameras, DCC, security systems, smoke detectors, thermostats, household appliances, spas, telephone/internet cables or cable TV coaxial cables; Ergonomic handling protects you when you are strongest, allowing the user to control the wrist normally, the upright position reduces stress, improves work efficiency, creates comfortable control reduces forearm strain and conforms to internal control Material: Fiberglass. Fiberglass is better than carbon-plated steel, this fish tape will not break when bent, faster and with less pulling force: low-friction design, so the tape is not held at bends, joints, or fittings, and slides easily through the conduit;Good quality product