Check the listing for details. Construct Pro 3-1/4" x 3-1/4" Non Conductive Plastic D-Ring Black 5 Pack Cat5. Color: Black, Condition: New. Listed at 19.95 USD. Brand New in Manufacturer's Packaging Construct Pro 3-1/4" x 3-1/4" Non-Conductive Plastic D-Ring - 5 Pack Purchase by 4pm CST M-F and this 5-Pack Set ships out SAME DAY Construct Pro 3-1/4in x 3-1/4in Non-Conductive Plastic D Ring (Black | 5 Pack) These handy D Rings are your solution for organizing and managing wires/cables. Built with a smooth bearing surface, they are crafted from a non-conducive plastic and allow for easy wire pulling. This classy design will prevent the wire jacket from wear and tear. Construct Pro D Rings provide an inexpensive, but incredibly effective, wire management system that allows you to mount virtually anywhere. With only a couple screws (not included), you can be fully installed in no time. Package contains (5) 3-1/4in x 3-1/4in Plastic D Rings.