Description: 【Wire Guide Accessories】: The cable tray rollers can provide smooth operation and prevent wire snag, great for wire pulling and laying, saving time and effort 【Premium Material】: The cable wire threading tools are made of stainless steel and nylon material, have a strong load bearing capacity, wear resistant, sturdy, and ensure a long time to use 【Easy to Use】: The cable wire threading tools adopt adjustable clamp designs, easy and smooth to operate and adjust, and protect your wire from wearing 【Easy Installation】: The wire guide helper laying tools are easy to install, improving work efficiency and cable management, great for varieties of engineering wire pulling and wiring 【Wide Applications】: The large opening cable threading tools are suitable for a variety of cables, and suitable for inside, outside, corners and various environments Specification: Material: Stainless Steel Nylon Size Chart: Ring diameter 6.5cm/2.56inch Clamp mouth 1.8cm/0.71inch Package Includes: 2 Cable Tray Rollers  Note: Please allow slightly errors 1-2cm differences due to manual measurement.