Fits 19 inches Networking Cabinets or Server Rack. Product Size: H 1.75 * D 3.11, 5-D Rings, Each Ring Size for Usage: W 1.54 * H 2.56; Easy to Organize Cables through the 5 Big D-Rings Designed to Organize the Horizontal Cables at the Back of your Equipment Rack, or Managing Cables onto Wall. Made of Sturdy Cold Rolled Steel with Powder Coating