Description: 【Material】: The cable tray roller is made of  metal and ABS ,  strong, smooth, wear resistant, and long service life 【Features】: Cable Wire Threading Tool pulley provides smooth  operation and prevents wires from getting stuck, not easy to damage wires, and you can easily operate  【Easy to use】: The  wire pulling tool is saving time and effort, and is more convenient to guide wires, ensuring work efficiency and cable security 【Design】: The wires threading tool adopts a roller design, the shaft will roll with the wire, protecting the wire from wear 【Versatile】Ideal for cable routing in bridge racks, suspended ceilings, garages, and integrated wiring projects, making it a must have tool for electricians and network installers Size Chart: Inner Diameter 6.5cm/2.56inch Opening: 2.7cm/1.06inch   Package Includes: 1x Cable Tray Roller Note: Please allow slightly errors 1-2cm differences due to manual measurement.