... four 1/2" holes.Cable Entry( Circular Orifice type), Circular Orifice type wall entySize: 4 hole alterable cable entry, 6 ... / Roof Feed Thru Plate, Circular Orifice type Cable Entry, Adjustable Diameter Wall Feeder Through, and etc... We produce UY wire ... pole test cord, cat5e test cord, disconnection plug, Jumper ring, feeder clamp, Stainless Steel Hanger, grounding kits, cable entry, wall entry, ...