This 1 1/2" ID, Wall Eye is made to fit a wall thickness from 5 5/8" - 8" in thickness. This is the perfect solution for running cables, wires and cords through your thicker wall, such as may be located on the outside wall of your home. Just drill a small hole, insert and assemble this Wall Eye and run your cables.
*Note* - If using this port on an outside wall, we would recommend filling the port once cables have been ran with something such as foam insulation or silicone to seal the interior hole.