Diameter 5 mm. Length 15 m or 30 m. Cable guide head options: steel guide head or spring guide head. Nonconductive rod POM fish tape works well in small pipes or when routing through walls. The POM material provides strong traction, good flexibility, resistance to aging and temperature, and will not break due to excessive bending. This makes it suitable for challenging routing tasks without electrical risk. Upgrade guide head Designed to easily pass through narrow corners. Large guide head hole allows the cable puller to connect with a wire puller through the guide head. The flexible spring head adds elasticity, strong bending capability, and toughness for demanding pulls. Accessory Includes 2 fasteners to improve usability. One side can connect to the wire, the other side to the fish tape, making setup quicker and your work easier. Use scenarios Pulling wires through smalldiameter conduits or through walls where a nonconductive rod is required. Navigating tight corners and narrow passages in electrical installations or retrofits. Working in environments near live circuits where nonconductive equipment reduces electrical risk while routing cables.