ICC offers a Plastic Cable Management D-Ring. These D-Rings are utilized to provide support for cables running through horizontally and vertically along walls. Their design is constructed to be durable and die-cast aluminum. This particular D-Ring is 3" and comes in 100 pack.Features Used to provide support for cable runs in horizontal and vertical along walls. Backboards or flat surfaces. Economical solutions to more expensive cable tray or ladder rack runway systems. Constructed of durable non-conductive ABS plastic Designed with two mounting holes per side for several mounting methods. Smooth rounded edges to avoid cables being damaged. Available in three inside diameters (2-inch, 3-inch, and 5-inch). Packaged in 100-pack ideal for small to large installations. Required (4) #10 machine screws to secure D-Ring into walls or flat surfaces. D-Ring is also available in die-cast Aluminum (ICC'sDRM02, ICC'sDRM03, ICC'sDRM05)