Luminescent fiberglass rods glow in the dark to make fishing voice, data and video wires easier to see in dark spaces * More flexible for fishing in walls through outlet box holes * Sturdy, steel threaded connectors are interchangeable with Greenlee 1/4 IN (6.4 mm) Fish Stix * Clear, non metallic storage tube keeps Glo Stix charged and ready to use * 200 lbs. maximum pulling strength