[Reduce Friction]: This Wire Threading Device connect wires in any direction. It helps pass through the hole with less friction and more ease. [Versatile]: This universal wire lead threading device tool can handle any wiring, from the floor to the ceiling, from the wall to the network, from the simple to the complex. It can easily and efficiently thread wires. [Efficient Wire Threading]: This wire insertion device has a flat head hook and a large hole that enable you to connect the wire and run several threads at once. It saves time and effort in wire threading. [Applicable Pipe Diameter]: With a wire diameter of 4mm, this electrical wire cable threader can easily thread wires through all kinds of PVC pipes, metal pipes, and other pipes. [Durable]: This wire lead threading device tool is made of durable 3 layer spring steel that can handle any bending force without wearing out or breaking. Because of its durability and flexibility, it is a great tool for any wire threading job. Specification: Material: Steel Size Chart: Length Optional: 5m/196.85inch, 10m/393.70inch, 15m/590.55inch, 20m/787.40inch, 25m/984.25inch Wire Diameter: 4mm/0.16inchHead Diameter: 6mm/0.24inch Head Hole Diameter: 3mm/0.12inch Package Includes: 1 Piece Wire Threading Device(Length Optional) Note: Please allow slightly errors due to manual measurement and different monitors.